57939797 has 4 divisors (see below), whose sum is σ = 60989280. Its totient is φ = 54890316.

The previous prime is 57939793. The next prime is 57939799. The reversal of 57939797 is 79793975.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57939797 - 2² = 57939793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57939793) 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, 1524713 + ... + 1524750.

It is an arithmetic number, because the mean of its divisors is an integer number (15247320).

Almost surely, 2^57939797 is an apocalyptic number.

It is an amenable number.

57939797 is a deficient number, since it is larger than the sum of its proper divisors (3049483).

57939797 is a wasteful number, since it uses less digits than its factorization.

57939797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049482.

The product of its digits is 3750705, while the sum is 56.

The square root of 57939797 is about 7611.8195590805. The cubic root of 57939797 is about 386.9536875899.

The spelling of 57939797 in words is "fifty-seven million, nine hundred thirty-nine thousand, seven hundred ninety-seven".