97064309 has 2 divisors, whose sum is σ = 97064310. Its totient is φ = 97064308.

The previous prime is 97064273. The next prime is 97064323. The reversal of 97064309 is 90346079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82264900 + 14799409 = 9070^2 + 3847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97064309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97064389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48532154 + 48532155.

It is an arithmetic number, because the mean of its divisors is an integer number (48532155).

Almost surely, 2^97064309 is an apocalyptic number.

It is an amenable number.

97064309 is a deficient number, since it is larger than the sum of its proper divisors (1).

97064309 is an equidigital number, since it uses as much as digits as its factorization.

97064309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 97064309 is about 9852.1220556792. The cubic root of 97064309 is about 459.5716065212.

The spelling of 97064309 in words is "ninety-seven million, sixty-four thousand, three hundred nine".