396800887 has 6 divisors (see below), whose sum is σ = 453546968. Its totient is φ = 340069872.

The previous prime is 396800879. The next prime is 396800951. The reversal of 396800887 is 788008693.

It is a happy number.

It is not a de Polignac number, because 396800887 - 2³ = 396800879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396800887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396800827) 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, 48939 + ... + 56467.

Almost surely, 2^396800887 is an apocalyptic number.

396800887 is a deficient number, since it is larger than the sum of its proper divisors (56746081).

396800887 is an frugal number, since it uses more digits than its factorization.

396800887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15065 (or 7536 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 396800887 is about 19919.8616210053. The cubic root of 396800887 is about 734.8367675521.

Multiplying 396800887 by its product of nonzero digits (580608), we get a square (230385769399296 = 15178464²).

The spelling of 396800887 in words is "three hundred ninety-six million, eight hundred thousand, eight hundred eighty-seven".