57994639 has 2 divisors, whose sum is σ = 57994640. Its totient is φ = 57994638.

The previous prime is 57994627. The next prime is 57994679. The reversal of 57994639 is 93649975.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57994639 - 2⁷ = 57994511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57994609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28997319 + 28997320.

It is an arithmetic number, because the mean of its divisors is an integer number (28997320).

Almost surely, 2^57994639 is an apocalyptic number.

57994639 is a deficient number, since it is larger than the sum of its proper divisors (1).

57994639 is an equidigital number, since it uses as much as digits as its factorization.

57994639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 52.

The square root of 57994639 is about 7615.4211308371. The cubic root of 57994639 is about 387.0757373909.

The spelling of 57994639 in words is "fifty-seven million, nine hundred ninety-four thousand, six hundred thirty-nine".