396591057 has 6 divisors (see below), whose sum is σ = 572853762. Its totient is φ = 264394032.

The previous prime is 396591017. The next prime is 396591059. The reversal of 396591057 is 750195693.

396591057 is a `hidden beast` number, since 3 + 9 + 6 + 591 + 0 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 267518736 + 129072321 = 16356^2 + 11361^2 .

It is not a de Polignac number, because 396591057 - 2⁶ = 396590993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396591059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22032828 + ... + 22032845.

It is an arithmetic number, because the mean of its divisors is an integer number (95475627).

Almost surely, 2^396591057 is an apocalyptic number.

It is an amenable number.

396591057 is a deficient number, since it is larger than the sum of its proper divisors (176262705).

396591057 is a wasteful number, since it uses less digits than its factorization.

396591057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44065679 (or 44065676 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 396591057 is about 19914.5940706809. The cubic root of 396591057 is about 734.7072164423.

The spelling of 396591057 in words is "three hundred ninety-six million, five hundred ninety-one thousand, fifty-seven".