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8045669 is a prime number
BaseRepresentation
bin11110101100010001100101
3120010202120202
4132230101211
54024430134
6444240245
7125246522
oct36542145
916122522
108045669
1145a5915
122840085
131889168
1410d6149
15a8dd7e
hex7ac465

8045669 has 2 divisors, whose sum is σ = 8045670. Its totient is φ = 8045668.

The previous prime is 8045663. The next prime is 8045671. The reversal of 8045669 is 9665408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7756225 + 289444 = 2785^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 8045669 - 220 = 6997093 is a prime.

It is a super-2 number, since 2×80456692 = 129465579315122, which contains 22 as substring.

Together with 8045671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8045663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4022834 + 4022835.

It is an arithmetic number, because the mean of its divisors is an integer number (4022835).

Almost surely, 28045669 is an apocalyptic number.

It is an amenable number.

8045669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8045669 is an equidigital number, since it uses as much as digits as its factorization.

8045669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 8045669 is about 2836.4888506744. The cubic root of 8045669 is about 200.3798531014.

The spelling of 8045669 in words is "eight million, forty-five thousand, six hundred sixty-nine".