97975567 has 2 divisors, whose sum is σ = 97975568. Its totient is φ = 97975566.

The previous prime is 97975511. The next prime is 97975597. The reversal of 97975567 is 76557979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97975567 - 2¹⁵ = 97942799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97975597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48987783 + 48987784.

It is an arithmetic number, because the mean of its divisors is an integer number (48987784).

Almost surely, 2^97975567 is an apocalyptic number.

97975567 is a deficient number, since it is larger than the sum of its proper divisors (1).

97975567 is an equidigital number, since it uses as much as digits as its factorization.

97975567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4167450, while the sum is 55.

The square root of 97975567 is about 9898.2608068286. The cubic root of 97975567 is about 461.0053107865.

The spelling of 97975567 in words is "ninety-seven million, nine hundred seventy-five thousand, five hundred sixty-seven".