398108 has 6 divisors (see below), whose sum is σ = 696696. Its totient is φ = 199052.

The previous prime is 398087. The next prime is 398113. The reversal of 398108 is 801893.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

398108 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 as a sum of consecutive naturals, namely, 49760 + ... + 49767.

It is an arithmetic number, because the mean of its divisors is an integer number (116116).

2³⁹⁸¹⁰⁸ is an apocalyptic number.

It is an amenable number.

398108 is a deficient number, since it is larger than the sum of its proper divisors (298588).

398108 is a wasteful number, since it uses less digits than its factorization.

398108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99531 (or 99529 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 398108 is about 630.9580017719. The cubic root of 398108 is about 73.5642765357.

The spelling of 398108 in words is "three hundred ninety-eight thousand, one hundred eight".