331696723 has 2 divisors, whose sum is σ = 331696724. Its totient is φ = 331696722.

The previous prime is 331696709. The next prime is 331696733. The reversal of 331696723 is 327696133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 331696723 - 2⁵ = 331696691 is a prime.

It is a super-2 number, since 2×331696723² = 220045432097877458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331696733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165848361 + 165848362.

It is an arithmetic number, because the mean of its divisors is an integer number (165848362).

Almost surely, 2^331696723 is an apocalyptic number.

331696723 is a deficient number, since it is larger than the sum of its proper divisors (1).

331696723 is an equidigital number, since it uses as much as digits as its factorization.

331696723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 40.

The square root of 331696723 is about 18212.5430129897. The cubic root of 331696723 is about 692.2246498783.

The spelling of 331696723 in words is "three hundred thirty-one million, six hundred ninety-six thousand, seven hundred twenty-three".