57977971 has 2 divisors, whose sum is σ = 57977972. Its totient is φ = 57977970.

The previous prime is 57977923. The next prime is 57978013. The reversal of 57977971 is 17977975.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57977971 - 2¹¹ = 57975923 is a prime.

It is a super-2 number, since 2×57977971² = 6722890242553682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57977371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28988985 + 28988986.

It is an arithmetic number, because the mean of its divisors is an integer number (28988986).

Almost surely, 2^57977971 is an apocalyptic number.

57977971 is a deficient number, since it is larger than the sum of its proper divisors (1).

57977971 is an equidigital number, since it uses as much as digits as its factorization.

57977971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972405, while the sum is 52.

The square root of 57977971 is about 7614.3266938056. The cubic root of 57977971 is about 387.0386512240.

The spelling of 57977971 in words is "fifty-seven million, nine hundred seventy-seven thousand, nine hundred seventy-one".