30968089 has 2 divisors, whose sum is σ = 30968090. Its totient is φ = 30968088.

The previous prime is 30968057. The next prime is 30968117. The reversal of 30968089 is 98086903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26163225 + 4804864 = 5115^2 + 2192^2 .

It is a cyclic number.

It is not a de Polignac number, because 30968089 - 2⁵ = 30968057 is a prime.

It is not a weakly prime, because it can be changed into another prime (30968009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15484044 + 15484045.

It is an arithmetic number, because the mean of its divisors is an integer number (15484045).

Almost surely, 2^30968089 is an apocalyptic number.

It is an amenable number.

30968089 is a deficient number, since it is larger than the sum of its proper divisors (1).

30968089 is an equidigital number, since it uses as much as digits as its factorization.

30968089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 30968089 is about 5564.8979325770. The cubic root of 30968089 is about 314.0302383418.

The spelling of 30968089 in words is "thirty million, nine hundred sixty-eight thousand, eighty-nine".