398708396 has 12 divisors (see below), whose sum is σ = 697970280. Its totient is φ = 199288320.

The previous prime is 398708393. The next prime is 398708399. The reversal of 398708396 is 693807893.

It is an interprime number because it is at equal distance from previous prime (398708393) and next prime (398708399).

It is not an unprimeable number, because it can be changed into a prime (398708393) by changing a digit.

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, 1301 + ... + 28268.

It is an arithmetic number, because the mean of its divisors is an integer number (58164190).

Almost surely, 2^398708396 is an apocalyptic number.

It is an amenable number.

398708396 is a deficient number, since it is larger than the sum of its proper divisors (299261884).

398708396 is a wasteful number, since it uses less digits than its factorization.

398708396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32944 (or 32942 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 398708396 is about 19967.6837915668. The cubic root of 398708396 is about 736.0123929663.

The spelling of 398708396 in words is "three hundred ninety-eight million, seven hundred eight thousand, three hundred ninety-six".