97865513 has 2 divisors, whose sum is σ = 97865514. Its totient is φ = 97865512.

The previous prime is 97865503. The next prime is 97865527. The reversal of 97865513 is 31556879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86359849 + 11505664 = 9293^2 + 3392^2 .

It is a cyclic number.

It is not a de Polignac number, because 97865513 - 2⁴ = 97865497 is a prime.

It is not a weakly prime, because it can be changed into another prime (97865503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48932756 + 48932757.

It is an arithmetic number, because the mean of its divisors is an integer number (48932757).

Almost surely, 2^97865513 is an apocalyptic number.

It is an amenable number.

97865513 is a deficient number, since it is larger than the sum of its proper divisors (1).

97865513 is an equidigital number, since it uses as much as digits as its factorization.

97865513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 97865513 is about 9892.6999853427. The cubic root of 97865513 is about 460.8326334255.

The spelling of 97865513 in words is "ninety-seven million, eight hundred sixty-five thousand, five hundred thirteen".