57693993 has 16 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 32913936.

The previous prime is 57693953. The next prime is 57694009. The reversal of 57693993 is 39939675.

57693993 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 57693993 - 2⁸ = 57693737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57693953) 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, 13378 + ... + 17156.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^57693993 is an apocalyptic number.

It is an amenable number.

57693993 is a deficient number, since it is larger than the sum of its proper divisors (30364887).

57693993 is a wasteful number, since it uses less digits than its factorization.

57693993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516.

The product of its digits is 1377810, while the sum is 51.

The square root of 57693993 is about 7595.6561928513. The cubic root of 57693993 is about 386.4057073751.

The spelling of 57693993 in words is "fifty-seven million, six hundred ninety-three thousand, nine hundred ninety-three".