57691394 has 8 divisors (see below), whose sum is σ = 87160080. Its totient is φ = 28638036.

The previous prime is 57691379. The next prime is 57691427. The reversal of 57691394 is 49319675.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103484 + ... + 104039.

It is an arithmetic number, because the mean of its divisors is an integer number (10895010).

Almost surely, 2^57691394 is an apocalyptic number.

57691394 is a deficient number, since it is larger than the sum of its proper divisors (29468686).

57691394 is a wasteful number, since it uses less digits than its factorization.

57691394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207664.

The product of its digits is 204120, while the sum is 44.

The square root of 57691394 is about 7595.4851062983. The cubic root of 57691394 is about 386.3999050176.

It can be divided in two parts, 57691 and 394, that added together give a palindrome (58085).

The spelling of 57691394 in words is "fifty-seven million, six hundred ninety-one thousand, three hundred ninety-four".