57889431 has 16 divisors (see below), whose sum is σ = 88529920. Its totient is φ = 37347480.

The previous prime is 57889421. The next prime is 57889439. The reversal of 57889431 is 13498875.

It is not a de Polignac number, because 57889431 - 2²¹ = 55792279 is a prime.

It is a super-2 number, since 2×57889431² = 6702372443007522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57889439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33745 + ... + 35418.

It is an arithmetic number, because the mean of its divisors is an integer number (5533120).

Almost surely, 2^57889431 is an apocalyptic number.

57889431 is a deficient number, since it is larger than the sum of its proper divisors (30640489).

57889431 is a wasteful number, since it uses less digits than its factorization.

57889431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69203 (or 69197 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 57889431 is about 7608.5104324040. The cubic root of 57889431 is about 386.8415311769.

It can be divided in two parts, 578 and 89431, that added together give a palindrome (90009).

The spelling of 57889431 in words is "fifty-seven million, eight hundred eighty-nine thousand, four hundred thirty-one".