57387983 has 2 divisors, whose sum is σ = 57387984. Its totient is φ = 57387982.

The previous prime is 57387977. The next prime is 57387997. The reversal of 57387983 is 38978375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57387983 - 2²⁰ = 56339407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57387973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28693991 + 28693992.

It is an arithmetic number, because the mean of its divisors is an integer number (28693992).

Almost surely, 2^57387983 is an apocalyptic number.

57387983 is a deficient number, since it is larger than the sum of its proper divisors (1).

57387983 is an equidigital number, since it uses as much as digits as its factorization.

57387983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The square root of 57387983 is about 7575.4856609989. The cubic root of 57387983 is about 385.7213282991.

The spelling of 57387983 in words is "fifty-seven million, three hundred eighty-seven thousand, nine hundred eighty-three".