397398 has 16 divisors (see below), whose sum is σ = 803520. Its totient is φ = 131016.

The previous prime is 397379. The next prime is 397427. The reversal of 397398 is 893793.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397398.

It is an unprimeable number.

397398 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 333 + ... + 951.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2³⁹⁷³⁹⁸ is an apocalyptic number.

397398 is an abundant number, since it is smaller than the sum of its proper divisors (406122).

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

397398 is a wasteful number, since it uses less digits than its factorization.

397398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its digits is 40824, while the sum is 39.

The square root of 397398 is about 630.3951141943. The cubic root of 397398 is about 73.5205181275.

The spelling of 397398 in words is "three hundred ninety-seven thousand, three hundred ninety-eight".