57706164 has 18 divisors (see below), whose sum is σ = 145868450. Its totient is φ = 19235376.

The previous prime is 57706163. The next prime is 57706169. The reversal of 57706164 is 46160775.

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 13749264 = 6630^2 + 3708^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1602949 = 57706164 / (5 + 7 + 7 + 0 + 6 + 1 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57706163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 801439 + ... + 801510.

Almost surely, 2^57706164 is an apocalyptic number.

It is an amenable number.

57706164 is an abundant number, since it is smaller than the sum of its proper divisors (88162286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57706164 is a wasteful number, since it uses less digits than its factorization.

57706164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602959 (or 1602954 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 57706164 is about 7596.4573322043. The cubic root of 57706164 is about 386.4328772354.

The spelling of 57706164 in words is "fifty-seven million, seven hundred six thousand, one hundred sixty-four".