8690657 has 4 divisors (see below), whose sum is σ = 9148080. Its totient is φ = 8233236.

The previous prime is 8690639. The next prime is 8690659. The reversal of 8690657 is 7560968.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8690657 - 2⁶ = 8690593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8690659) 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 in 3 ways as a sum of consecutive naturals, for example, 228683 + ... + 228720.

It is an arithmetic number, because the mean of its divisors is an integer number (2287020).

Almost surely, 2^8690657 is an apocalyptic number.

It is an amenable number.

8690657 is a deficient number, since it is larger than the sum of its proper divisors (457423).

8690657 is a wasteful number, since it uses less digits than its factorization.

8690657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457422.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 8690657 is about 2947.9920284831. The cubic root of 8690657 is about 205.5973613317.

The spelling of 8690657 in words is "eight million, six hundred ninety thousand, six hundred fifty-seven".