331839923 has 2 divisors, whose sum is σ = 331839924. Its totient is φ = 331839922.

The previous prime is 331839919. The next prime is 331839961. The reversal of 331839923 is 329938133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331839923 - 2² = 331839919 is a prime.

It is a super-2 number, since 2×331839923² = 220235468993291858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331839913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165919961 + 165919962.

It is an arithmetic number, because the mean of its divisors is an integer number (165919962).

Almost surely, 2^331839923 is an apocalyptic number.

331839923 is a deficient number, since it is larger than the sum of its proper divisors (1).

331839923 is an equidigital number, since it uses as much as digits as its factorization.

331839923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 331839923 is about 18216.4739453057. The cubic root of 331839923 is about 692.3242512124.

The spelling of 331839923 in words is "three hundred thirty-one million, eight hundred thirty-nine thousand, nine hundred twenty-three".