30964309 has 2 divisors, whose sum is σ = 30964310. Its totient is φ = 30964308.

The previous prime is 30964303. The next prime is 30964331. The reversal of 30964309 is 90346903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28323684 + 2640625 = 5322^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 30964309 - 2⁷ = 30964181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30964303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15482154 + 15482155.

It is an arithmetic number, because the mean of its divisors is an integer number (15482155).

Almost surely, 2^30964309 is an apocalyptic number.

It is an amenable number.

30964309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30964309 is an equidigital number, since it uses as much as digits as its factorization.

30964309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 30964309 is about 5564.5582933419. The cubic root of 30964309 is about 314.0174608598.

The spelling of 30964309 in words is "thirty million, nine hundred sixty-four thousand, three hundred nine".