57938491 has 16 divisors (see below), whose sum is σ = 64884960. Its totient is φ = 51367680.

The previous prime is 57938483. The next prime is 57938497. The reversal of 57938491 is 19483975.

It is a happy number.

57938491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57938491 - 2³ = 57938483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57938497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117756 + ... + 118246.

It is an arithmetic number, because the mean of its divisors is an integer number (4055310).

Almost surely, 2^57938491 is an apocalyptic number.

57938491 is the 4069-th nonagonal number.

57938491 is a deficient number, since it is larger than the sum of its proper divisors (6946469).

57938491 is a wasteful number, since it uses less digits than its factorization.

57938491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its digits is 272160, while the sum is 46.

The square root of 57938491 is about 7611.7337709618. The cubic root of 57938491 is about 386.9507801737.

The spelling of 57938491 in words is "fifty-seven million, nine hundred thirty-eight thousand, four hundred ninety-one".