97997357 has 2 divisors, whose sum is σ = 97997358. Its totient is φ = 97997356.

The previous prime is 97997323. The next prime is 97997369. The reversal of 97997357 is 75379979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51566761 + 46430596 = 7181^2 + 6814^2 .

It is an emirp because it is prime and its reverse (75379979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97997357 - 2¹⁰ = 97996333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97997377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48998678 + 48998679.

It is an arithmetic number, because the mean of its divisors is an integer number (48998679).

Almost surely, 2^97997357 is an apocalyptic number.

It is an amenable number.

97997357 is a deficient number, since it is larger than the sum of its proper divisors (1).

97997357 is an equidigital number, since it uses as much as digits as its factorization.

97997357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750705, while the sum is 56.

The square root of 97997357 is about 9899.3614440528. The cubic root of 97997357 is about 461.0394844804.

The spelling of 97997357 in words is "ninety-seven million, nine hundred ninety-seven thousand, three hundred fifty-seven".