396837885 has 64 divisors (see below), whose sum is σ = 703572480. Its totient is φ = 190095360.

The previous prime is 396837877. The next prime is 396837887. The reversal of 396837885 is 588738693.

It is not a de Polignac number, because 396837885 - 2³ = 396837877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396837887) 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 63 ways as a sum of consecutive naturals, for example, 761425 + ... + 761945.

It is an arithmetic number, because the mean of its divisors is an integer number (10993320).

Almost surely, 2^396837885 is an apocalyptic number.

It is an amenable number.

396837885 is a deficient number, since it is larger than the sum of its proper divisors (306734595).

396837885 is a wasteful number, since it uses less digits than its factorization.

396837885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 8709120, while the sum is 57.

The square root of 396837885 is about 19920.7902704687. The cubic root of 396837885 is about 734.8596057451.

The spelling of 396837885 in words is "three hundred ninety-six million, eight hundred thirty-seven thousand, eight hundred eighty-five".