57727939 has 2 divisors, whose sum is σ = 57727940. Its totient is φ = 57727938.

The previous prime is 57727933. The next prime is 57727979. The reversal of 57727939 is 93972775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57727939 - 2³ = 57727931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57727892 and 57727901.

It is not a weakly prime, because it can be changed into another prime (57727931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28863969 + 28863970.

It is an arithmetic number, because the mean of its divisors is an integer number (28863970).

Almost surely, 2^57727939 is an apocalyptic number.

57727939 is a deficient number, since it is larger than the sum of its proper divisors (1).

57727939 is an equidigital number, since it uses as much as digits as its factorization.

57727939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 833490, while the sum is 49.

The square root of 57727939 is about 7597.8904309025. The cubic root of 57727939 is about 386.4814769987.

The spelling of 57727939 in words is "fifty-seven million, seven hundred twenty-seven thousand, nine hundred thirty-nine".