97975967 has 2 divisors, whose sum is σ = 97975968. Its totient is φ = 97975966.

The previous prime is 97975919. The next prime is 97976003. The reversal of 97975967 is 76957979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97975967 - 2¹² = 97971871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97975067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48987983 + 48987984.

It is an arithmetic number, because the mean of its divisors is an integer number (48987984).

Almost surely, 2^97975967 is an apocalyptic number.

97975967 is a deficient number, since it is larger than the sum of its proper divisors (1).

97975967 is an equidigital number, since it uses as much as digits as its factorization.

97975967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7501410, while the sum is 59.

The square root of 97975967 is about 9898.2810123779. The cubic root of 97975967 is about 461.0059381602.

The spelling of 97975967 in words is "ninety-seven million, nine hundred seventy-five thousand, nine hundred sixty-seven".