57769431 has 4 divisors (see below), whose sum is σ = 77025912. Its totient is φ = 38512952.

The previous prime is 57769427. The next prime is 57769433. The reversal of 57769431 is 13496775.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57769431 - 2² = 57769427 is a prime.

It is a super-2 number, since 2×57769431² = 6674614316127522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57769433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9628236 + ... + 9628241.

It is an arithmetic number, because the mean of its divisors is an integer number (19256478).

Almost surely, 2^57769431 is an apocalyptic number.

57769431 is a deficient number, since it is larger than the sum of its proper divisors (19256481).

57769431 is a wasteful number, since it uses less digits than its factorization.

57769431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19256480.

The product of its digits is 158760, while the sum is 42.

The square root of 57769431 is about 7600.6204352013. The cubic root of 57769431 is about 386.5740494418.

The spelling of 57769431 in words is "fifty-seven million, seven hundred sixty-nine thousand, four hundred thirty-one".