57309694 has 16 divisors (see below), whose sum is σ = 92806560. Its totient is φ = 26385120.

The previous prime is 57309691. The next prime is 57309697. The reversal of 57309694 is 49690375.

It is an interprime number because it is at equal distance from previous prime (57309691) and next prime (57309697).

It is a self number, because there is not a number n which added to its sum of digits gives 57309694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57309691) 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, 8904 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (5800410).

Almost surely, 2^57309694 is an apocalyptic number.

57309694 is a deficient number, since it is larger than the sum of its proper divisors (35496866).

57309694 is a wasteful number, since it uses less digits than its factorization.

57309694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 57309694 is about 7570.3166380278. The cubic root of 57309694 is about 385.5458474297.

The spelling of 57309694 in words is "fifty-seven million, three hundred nine thousand, six hundred ninety-four".