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7960681 is a prime number
BaseRepresentation
bin11110010111100001101001
3112222110000001
4132113201221
54014220211
6442343001
7124443661
oct36274151
915873001
107960681
114547a83
1227baa61
131859581
1410b31a1
15a73ac1
hex797869

7960681 has 2 divisors, whose sum is σ = 7960682. Its totient is φ = 7960680.

The previous prime is 7960679. The next prime is 7960697. The reversal of 7960681 is 1860697.

7960681 is nontrivially palindromic in base 13.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7952400 + 8281 = 2820^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 7960681 - 21 = 7960679 is a prime.

It is a super-2 number, since 2×79606812 = 126744883967522, which contains 22 as substring.

Together with 7960679, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7960681.

It is not a weakly prime, because it can be changed into another prime (7960621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3980340 + 3980341.

It is an arithmetic number, because the mean of its divisors is an integer number (3980341).

Almost surely, 27960681 is an apocalyptic number.

It is an amenable number.

7960681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7960681 is an equidigital number, since it uses as much as digits as its factorization.

7960681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 7960681 is about 2821.4678803772. The cubic root of 7960681 is about 199.6718033962.

The spelling of 7960681 in words is "seven million, nine hundred sixty thousand, six hundred eighty-one".