97646897 has 2 divisors, whose sum is σ = 97646898. Its totient is φ = 97646896.

The previous prime is 97646873. The next prime is 97646911. The reversal of 97646897 is 79864679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96216481 + 1430416 = 9809^2 + 1196^2 .

It is a cyclic number.

It is not a de Polignac number, because 97646897 - 2⁸ = 97646641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97646837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48823448 + 48823449.

It is an arithmetic number, because the mean of its divisors is an integer number (48823449).

Almost surely, 2^97646897 is an apocalyptic number.

It is an amenable number.

97646897 is a deficient number, since it is larger than the sum of its proper divisors (1).

97646897 is an equidigital number, since it uses as much as digits as its factorization.

97646897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 97646897 is about 9881.6444481675. The cubic root of 97646897 is about 460.4892353155.

It can be divided in two parts, 9764 and 6897, that added together give a palindrome (16661).

The spelling of 97646897 in words is "ninety-seven million, six hundred forty-six thousand, eight hundred ninety-seven".