57693939 has 4 divisors (see below), whose sum is σ = 76925256. Its totient is φ = 38462624.

The previous prime is 57693893. The next prime is 57693947. The reversal of 57693939 is 93939675.

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 57693939 - 2²³ = 49305331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57693891 and 57693900.

It is not an unprimeable number, because it can be changed into a prime (57693439) 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, 9615654 + ... + 9615659.

It is an arithmetic number, because the mean of its divisors is an integer number (19231314).

Almost surely, 2^57693939 is an apocalyptic number.

57693939 is a deficient number, since it is larger than the sum of its proper divisors (19231317).

57693939 is a wasteful number, since it uses less digits than its factorization.

57693939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19231316.

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

The square root of 57693939 is about 7595.6526381872. The cubic root of 57693939 is about 386.4055868200.

The spelling of 57693939 in words is "fifty-seven million, six hundred ninety-three thousand, nine hundred thirty-nine".