97297493 has 2 divisors, whose sum is σ = 97297494. Its totient is φ = 97297492.

The previous prime is 97297481. The next prime is 97297507. The reversal of 97297493 is 39479279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96963409 + 334084 = 9847^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 97297493 - 2²² = 93103189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97297463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48648746 + 48648747.

It is an arithmetic number, because the mean of its divisors is an integer number (48648747).

Almost surely, 2^97297493 is an apocalyptic number.

It is an amenable number.

97297493 is a deficient number, since it is larger than the sum of its proper divisors (1).

97297493 is an equidigital number, since it uses as much as digits as its factorization.

97297493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The square root of 97297493 is about 9863.9491584253. The cubic root of 97297493 is about 459.9393319486.

The spelling of 97297493 in words is "ninety-seven million, two hundred ninety-seven thousand, four hundred ninety-three".