398816876 has 12 divisors (see below), whose sum is σ = 698293008. Its totient is φ = 199304592.

The previous prime is 398816867. The next prime is 398816893. The reversal of 398816876 is 678618893.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 16976 + ... + 32951.

It is an arithmetic number, because the mean of its divisors is an integer number (58191084).

Almost surely, 2^398816876 is an apocalyptic number.

It is an amenable number.

398816876 is a deficient number, since it is larger than the sum of its proper divisors (299476132).

398816876 is a wasteful number, since it uses less digits than its factorization.

398816876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51928 (or 51926 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 398816876 is about 19970.3999959941. The cubic root of 398816876 is about 736.0791379736.

The spelling of 398816876 in words is "three hundred ninety-eight million, eight hundred sixteen thousand, eight hundred seventy-six".