97585231 has 2 divisors, whose sum is σ = 97585232. Its totient is φ = 97585230.

The previous prime is 97585223. The next prime is 97585259. The reversal of 97585231 is 13258579.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97585231 - 2³ = 97585223 is a prime.

It is a super-2 number, since 2×97585231² = 19045754618646722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97585531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48792615 + 48792616.

It is an arithmetic number, because the mean of its divisors is an integer number (48792616).

Almost surely, 2^97585231 is an apocalyptic number.

97585231 is a deficient number, since it is larger than the sum of its proper divisors (1).

97585231 is an equidigital number, since it uses as much as digits as its factorization.

97585231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 97585231 is about 9878.5237257396. The cubic root of 97585231 is about 460.3922787989.

The spelling of 97585231 in words is "ninety-seven million, five hundred eighty-five thousand, two hundred thirty-one".