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7628069 is a prime number
BaseRepresentation
bin11101000110010100100101
3112100112202002
4131012110211
53423044234
6431255045
7121560161
oct35062445
915315662
107628069
114340099
12267a485
131771067
141027ca1
15a0a27e
hex746525

7628069 has 2 divisors, whose sum is σ = 7628070. Its totient is φ = 7628068.

The previous prime is 7628041. The next prime is 7628081. The reversal of 7628069 is 9608267.

7628069 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7491169 + 136900 = 2737^2 + 370^2 .

It is an emirp because it is prime and its reverse (9608267) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7628069 is a prime.

It is a super-2 number, since 2×76280692 = 116374873337522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7628039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3814034 + 3814035.

It is an arithmetic number, because the mean of its divisors is an integer number (3814035).

Almost surely, 27628069 is an apocalyptic number.

It is an amenable number.

7628069 is a deficient number, since it is larger than the sum of its proper divisors (1).

7628069 is an equidigital number, since it uses as much as digits as its factorization.

7628069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 7628069 is about 2761.8959068003. The cubic root of 7628069 is about 196.8512624106.

The spelling of 7628069 in words is "seven million, six hundred twenty-eight thousand, sixty-nine".