97685249 has 2 divisors, whose sum is σ = 97685250. Its totient is φ = 97685248.

The previous prime is 97685239. The next prime is 97685257. The reversal of 97685249 is 94258679.

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., 86583025 + 11102224 = 9305^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 97685249 - 2¹² = 97681153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 97685197 and 97685206.

It is not a weakly prime, because it can be changed into another prime (97685239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48842624 + 48842625.

It is an arithmetic number, because the mean of its divisors is an integer number (48842625).

Almost surely, 2^97685249 is an apocalyptic number.

It is an amenable number.

97685249 is a deficient number, since it is larger than the sum of its proper divisors (1).

97685249 is an equidigital number, since it uses as much as digits as its factorization.

97685249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 97685249 is about 9883.5848253556. The cubic root of 97685249 is about 460.5495149968.

The spelling of 97685249 in words is "ninety-seven million, six hundred eighty-five thousand, two hundred forty-nine".