398677795 has 16 divisors (see below), whose sum is σ = 507057408. Its totient is φ = 299883520.

The previous prime is 398677787. The next prime is 398677841. The reversal of 398677795 is 597776893.

It is not a de Polignac number, because 398677795 - 2³ = 398677787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124302 + ... + 127468.

It is an arithmetic number, because the mean of its divisors is an integer number (31691088).

Almost surely, 2^398677795 is an apocalyptic number.

398677795 is a deficient number, since it is larger than the sum of its proper divisors (108379613).

398677795 is a wasteful number, since it uses less digits than its factorization.

398677795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670.

The product of its digits is 20003760, while the sum is 61.

The square root of 398677795 is about 19966.9175137276. The cubic root of 398677795 is about 735.9935627538.

The spelling of 398677795 in words is "three hundred ninety-eight million, six hundred seventy-seven thousand, seven hundred ninety-five".