8656369 has 2 divisors, whose sum is σ = 8656370. Its totient is φ = 8656368.

The previous prime is 8656367. The next prime is 8656379. The reversal of 8656369 is 9636568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8643600 + 12769 = 2940^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 8656369 - 2¹ = 8656367 is a prime.

It is a super-2 number, since 2×8656369² = 149865448528322, which contains 22 as substring.

Together with 8656367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8656363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4328184 + 4328185.

It is an arithmetic number, because the mean of its divisors is an integer number (4328185).

Almost surely, 2^8656369 is an apocalyptic number.

It is an amenable number.

8656369 is a deficient number, since it is larger than the sum of its proper divisors (1).

8656369 is an equidigital number, since it uses as much as digits as its factorization.

8656369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 8656369 is about 2942.1707972176. The cubic root of 8656369 is about 205.3266179449.

It can be divided in two parts, 8656 and 369, that added together give a square (9025 = 95²).

The spelling of 8656369 in words is "eight million, six hundred fifty-six thousand, three hundred sixty-nine".