396557379 has 48 divisors (see below), whose sum is σ = 624218400. Its totient is φ = 241740288.

The previous prime is 396557353. The next prime is 396557387. The reversal of 396557379 is 973755693.

396557379 is a `hidden beast` number, since 3 + 9 + 65 + 573 + 7 + 9 = 666.

It is not a de Polignac number, because 396557379 - 2⁸ = 396557123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396557479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1474057 + ... + 1474325.

It is an arithmetic number, because the mean of its divisors is an integer number (13004550).

Almost surely, 2^396557379 is an apocalyptic number.

396557379 is a deficient number, since it is larger than the sum of its proper divisors (227661021).

396557379 is a wasteful number, since it uses less digits than its factorization.

396557379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 561 counting only the distinct ones).

The product of its digits is 5358150, while the sum is 54.

The square root of 396557379 is about 19913.7484919339. The cubic root of 396557379 is about 734.6864190578.

The spelling of 396557379 in words is "three hundred ninety-six million, five hundred fifty-seven thousand, three hundred seventy-nine".