57697137 has 16 divisors (see below), whose sum is σ = 85600000. Its totient is φ = 38409552.

The previous prime is 57697111. The next prime is 57697147. The reversal of 57697137 is 73179675.

57697137 is a `hidden beast` number, since 576 + 9 + 71 + 3 + 7 = 666.

57697137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57697137 - 2²² = 53502833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57697092 and 57697101.

It is not an unprimeable number, because it can be changed into a prime (57697147) 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 15 ways as a sum of consecutive naturals, for example, 27864 + ... + 29862.

It is an arithmetic number, because the mean of its divisors is an integer number (5350000).

Almost surely, 2^57697137 is an apocalyptic number.

It is an amenable number.

57697137 is a deficient number, since it is larger than the sum of its proper divisors (27902863).

57697137 is a wasteful number, since it uses less digits than its factorization.

57697137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077 (or 3071 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 57697137 is about 7595.8631504260. The cubic root of 57697137 is about 386.4127262311.

The spelling of 57697137 in words is "fifty-seven million, six hundred ninety-seven thousand, one hundred thirty-seven".