57629939 has 2 divisors, whose sum is σ = 57629940. Its totient is φ = 57629938.

The previous prime is 57629867. The next prime is 57629941. The reversal of 57629939 is 93992675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57629939 - 2²⁴ = 40852723 is a prime.

Together with 57629941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57629959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28814969 + 28814970.

It is an arithmetic number, because the mean of its divisors is an integer number (28814970).

Almost surely, 2^57629939 is an apocalyptic number.

57629939 is a deficient number, since it is larger than the sum of its proper divisors (1).

57629939 is an equidigital number, since it uses as much as digits as its factorization.

57629939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 50.

The square root of 57629939 is about 7591.4385329791. The cubic root of 57629939 is about 386.2626537959.

The spelling of 57629939 in words is "fifty-seven million, six hundred twenty-nine thousand, nine hundred thirty-nine".