57665697 has 8 divisors (see below), whose sum is σ = 76945440. Its totient is φ = 38414880.

The previous prime is 57665689. The next prime is 57665701. The reversal of 57665697 is 79656675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57665697 - 2³ = 57665689 is a prime.

It is a super-2 number, since 2×57665697² = 6650665220991618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57665677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047 + ... + 10932.

It is an arithmetic number, because the mean of its divisors is an integer number (9618180).

Almost surely, 2^57665697 is an apocalyptic number.

It is an amenable number.

57665697 is a deficient number, since it is larger than the sum of its proper divisors (19279743).

57665697 is a wasteful number, since it uses less digits than its factorization.

57665697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14463.

The product of its digits is 2381400, while the sum is 51.

The square root of 57665697 is about 7593.7933208641. The cubic root of 57665697 is about 386.3425261940.

The spelling of 57665697 in words is "fifty-seven million, six hundred sixty-five thousand, six hundred ninety-seven".