398533976 has 16 divisors (see below), whose sum is σ = 764629800. Its totient is φ = 194632704.

The previous prime is 398533973. The next prime is 398534033. The reversal of 398533976 is 679335893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398533973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578921 + ... + 579608.

Almost surely, 2^398533976 is an apocalyptic number.

It is an amenable number.

398533976 is a deficient number, since it is larger than the sum of its proper divisors (366095824).

398533976 is a wasteful number, since it uses less digits than its factorization.

398533976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158578 (or 1158574 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 53.

The square root of 398533976 is about 19963.3157566573. The cubic root of 398533976 is about 735.9050513543.

The spelling of 398533976 in words is "three hundred ninety-eight million, five hundred thirty-three thousand, nine hundred seventy-six".