97582657 has 2 divisors, whose sum is σ = 97582658. Its totient is φ = 97582656.

The previous prime is 97582627. The next prime is 97582663. The reversal of 97582657 is 75628579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90801841 + 6780816 = 9529^2 + 2604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97582657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97582657.

It is not a weakly prime, because it can be changed into another prime (97582627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48791328 + 48791329.

It is an arithmetic number, because the mean of its divisors is an integer number (48791329).

Almost surely, 2^97582657 is an apocalyptic number.

It is an amenable number.

97582657 is a deficient number, since it is larger than the sum of its proper divisors (1).

97582657 is an equidigital number, since it uses as much as digits as its factorization.

97582657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 49.

The square root of 97582657 is about 9878.3934422557. The cubic root of 97582657 is about 460.3882308498.

The spelling of 97582657 in words is "ninety-seven million, five hundred eighty-two thousand, six hundred fifty-seven".