398792 has 16 divisors (see below), whose sum is σ = 758400. Its totient is φ = 196560.

The previous prime is 398771. The next prime is 398813. The reversal of 398792 is 297893.

It is an interprime number because it is at equal distance from previous prime (398771) and next prime (398813).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398792.

It is an unprimeable number.

398792 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (47400).

2³⁹⁸⁷⁹² is an apocalyptic number.

It is a pronic number, being equal to 631×632.

It is an amenable number.

398792 is a deficient number, since it is larger than the sum of its proper divisors (359608).

398792 is a wasteful number, since it uses less digits than its factorization.

398792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 712 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 398792 is about 631.4998020586. The cubic root of 398792 is about 73.6063833468.

The spelling of 398792 in words is "three hundred ninety-eight thousand, seven hundred ninety-two".