331873 has 4 divisors (see below), whose sum is σ = 349360. Its totient is φ = 314388.

The previous prime is 331871. The next prime is 331883. The reversal of 331873 is 378133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331873 - 2¹ = 331871 is a prime.

It is a super-2 number, since 2×331873² = 220279376258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715 + ... + 8752.

It is an arithmetic number, because the mean of its divisors is an integer number (87340).

2³³¹⁸⁷³ is an apocalyptic number.

It is an amenable number.

331873 is a deficient number, since it is larger than the sum of its proper divisors (17487).

331873 is a wasteful number, since it uses less digits than its factorization.

331873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17486.

The product of its digits is 1512, while the sum is 25.

The square root of 331873 is about 576.0841952354. The cubic root of 331873 is about 69.2347253516.

The spelling of 331873 in words is "three hundred thirty-one thousand, eight hundred seventy-three".