57697311 has 8 divisors (see below), whose sum is σ = 87919744. Its totient is φ = 32969880.

The previous prime is 57697279. The next prime is 57697313. The reversal of 57697311 is 11379675.

57697311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57697311 - 2⁵ = 57697279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57697311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57697313) 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 in 7 ways as a sum of consecutive naturals, for example, 1373725 + ... + 1373766.

It is an arithmetic number, because the mean of its divisors is an integer number (10989968).

Almost surely, 2^57697311 is an apocalyptic number.

57697311 is a deficient number, since it is larger than the sum of its proper divisors (30222433).

57697311 is a wasteful number, since it uses less digits than its factorization.

57697311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747501.

The product of its digits is 39690, while the sum is 39.

The square root of 57697311 is about 7595.8746040203. The cubic root of 57697311 is about 386.4131146717.

The spelling of 57697311 in words is "fifty-seven million, six hundred ninety-seven thousand, three hundred eleven".