331798 has 8 divisors (see below), whose sum is σ = 519408. Its totient is φ = 158664.

The previous prime is 331781. The next prime is 331801. The reversal of 331798 is 897133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×331798² = 220179825608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3561 + ... + 3652.

It is an arithmetic number, because the mean of its divisors is an integer number (64926).

2³³¹⁷⁹⁸ is an apocalyptic number.

331798 is a deficient number, since it is larger than the sum of its proper divisors (187610).

331798 is a wasteful number, since it uses less digits than its factorization.

331798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7238.

The product of its digits is 4536, while the sum is 31.

The square root of 331798 is about 576.0190969056. The cubic root of 331798 is about 69.2295095054.

The spelling of 331798 in words is "three hundred thirty-one thousand, seven hundred ninety-eight".