328000931 has 2 divisors, whose sum is σ = 328000932. Its totient is φ = 328000930.

The previous prime is 328000909. The next prime is 328000961. The reversal of 328000931 is 139000823.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328000931 is a prime.

It is a super-2 number, since 2×328000931² = 215169221473733522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 328000931.

It is not a weakly prime, because it can be changed into another prime (328000961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164000465 + 164000466.

It is an arithmetic number, because the mean of its divisors is an integer number (164000466).

Almost surely, 2^328000931 is an apocalyptic number.

328000931 is a deficient number, since it is larger than the sum of its proper divisors (1).

328000931 is an equidigital number, since it uses as much as digits as its factorization.

328000931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 328000931 is about 18110.7959791943. The cubic root of 328000931 is about 689.6441005739.

The spelling of 328000931 in words is "three hundred twenty-eight million, nine hundred thirty-one", and thus it is an aban number.