97685057 has 2 divisors, whose sum is σ = 97685058. Its totient is φ = 97685056.

The previous prime is 97685041. The next prime is 97685059. The reversal of 97685057 is 75058679.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89794576 + 7890481 = 9476^2 + 2809^2 .

It is a cyclic number.

It is not a de Polignac number, because 97685057 - 2⁴ = 97685041 is a prime.

It is a super-2 number, since 2×97685057² = 19084740722186498, which contains 22 as substring.

Together with 97685059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97685059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48842528 + 48842529.

It is an arithmetic number, because the mean of its divisors is an integer number (48842529).

Almost surely, 2^97685057 is an apocalyptic number.

It is an amenable number.

97685057 is a deficient number, since it is larger than the sum of its proper divisors (1).

97685057 is an equidigital number, since it uses as much as digits as its factorization.

97685057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 97685057 is about 9883.5751122759. The cubic root of 97685057 is about 460.5492132605.

The spelling of 97685057 in words is "ninety-seven million, six hundred eighty-five thousand, fifty-seven".