97502609 has 2 divisors, whose sum is σ = 97502610. Its totient is φ = 97502608.

The previous prime is 97502597. The next prime is 97502617. The reversal of 97502609 is 90620579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97456384 + 46225 = 9872^2 + 215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97502609 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (97502689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48751304 + 48751305.

It is an arithmetic number, because the mean of its divisors is an integer number (48751305).

Almost surely, 2^97502609 is an apocalyptic number.

It is an amenable number.

97502609 is a deficient number, since it is larger than the sum of its proper divisors (1).

97502609 is an equidigital number, since it uses as much as digits as its factorization.

97502609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 97502609 is about 9874.3409400324. The cubic root of 97502609 is about 460.2623094350.

The spelling of 97502609 in words is "ninety-seven million, five hundred two thousand, six hundred nine".