398098939707 has 24 divisors (see below), whose sum is σ = 657220902624. Its totient is φ = 227470673664.

The previous prime is 398098939703. The next prime is 398098939741. The reversal of 398098939707 is 707939890893.

It is not a de Polignac number, because 398098939707 - 2² = 398098939703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398098939703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 843013 + ... + 1227545.

It is an arithmetic number, because the mean of its divisors is an integer number (27384204276).

Almost surely, 2^398098939707 is an apocalyptic number.

398098939707 is a deficient number, since it is larger than the sum of its proper divisors (259121962917).

398098939707 is a wasteful number, since it uses less digits than its factorization.

398098939707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400979 (or 400976 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 72.

The spelling of 398098939707 in words is "three hundred ninety-eight billion, ninety-eight million, nine hundred thirty-nine thousand, seven hundred seven".