398768 has 10 divisors (see below), whose sum is σ = 772644. Its totient is φ = 199376.

The previous prime is 398759. The next prime is 398771. The reversal of 398768 is 867893.

It is an unprimeable number.

398768 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, 12446 + ... + 12477.

2³⁹⁸⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

398768 is a deficient number, since it is larger than the sum of its proper divisors (373876).

398768 is a wasteful number, since it uses less digits than its factorization.

398768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24931 (or 24925 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 398768 is about 631.4807993914. The cubic root of 398768 is about 73.6049067302.

The spelling of 398768 in words is "three hundred ninety-eight thousand, seven hundred sixty-eight".