398896 has 20 divisors (see below), whose sum is σ = 783432. Its totient is φ = 196736.

The previous prime is 398887. The next prime is 398903. The reversal of 398896 is 698893.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596 + ... + 1828.

2³⁹⁸⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

398896 is a deficient number, since it is larger than the sum of its proper divisors (384536).

398896 is a wasteful number, since it uses less digits than its factorization.

398896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 342 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 398896 is about 631.5821403428. The cubic root of 398896 is about 73.6127813341.

The spelling of 398896 in words is "three hundred ninety-eight thousand, eight hundred ninety-six".