398874 has 16 divisors (see below), whose sum is σ = 911808. Its totient is φ = 113952.

The previous prime is 398863. The next prime is 398887. The reversal of 398874 is 478893.

It is an Ulam number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4707 + ... + 4790.

It is an arithmetic number, because the mean of its divisors is an integer number (56988).

2³⁹⁸⁸⁷⁴ is an apocalyptic number.

398874 is an abundant number, since it is smaller than the sum of its proper divisors (512934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398874 is a wasteful number, since it uses less digits than its factorization.

398874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509.

The product of its digits is 48384, while the sum is 39.

The square root of 398874 is about 631.5647235240. The cubic root of 398874 is about 73.6114280065.

The spelling of 398874 in words is "three hundred ninety-eight thousand, eight hundred seventy-four".