30664331 has 2 divisors, whose sum is σ = 30664332. Its totient is φ = 30664330.

The previous prime is 30664321. The next prime is 30664343. The reversal of 30664331 is 13346603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30664331 - 2¹⁰ = 30663307 is a prime.

It is a super-2 number, since 2×30664331² = 1880602391355122, 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 30664331.

It is not a weakly prime, because it can be changed into another prime (30664321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15332165 + 15332166.

It is an arithmetic number, because the mean of its divisors is an integer number (15332166).

Almost surely, 2^30664331 is an apocalyptic number.

30664331 is a deficient number, since it is larger than the sum of its proper divisors (1).

30664331 is an equidigital number, since it uses as much as digits as its factorization.

30664331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 30664331 is about 5537.5383520117. The cubic root of 30664331 is about 313.0001156828. Note that the first 3 decimals are identical.

The spelling of 30664331 in words is "thirty million, six hundred sixty-four thousand, three hundred thirty-one".