396847438 has 16 divisors (see below), whose sum is σ = 644323680. Its totient is φ = 182228256.

The previous prime is 396847427. The next prime is 396847447. The reversal of 396847438 is 834748693.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33618 + ... + 43861.

It is an arithmetic number, because the mean of its divisors is an integer number (40270230).

Almost surely, 2^396847438 is an apocalyptic number.

396847438 is a deficient number, since it is larger than the sum of its proper divisors (247476242).

396847438 is a wasteful number, since it uses less digits than its factorization.

396847438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77691.

The product of its digits is 3483648, while the sum is 52.

The square root of 396847438 is about 19921.0300436499. The cubic root of 396847438 is about 734.8655024079.

The spelling of 396847438 in words is "three hundred ninety-six million, eight hundred forty-seven thousand, four hundred thirty-eight".