97248989 has 2 divisors, whose sum is σ = 97248990. Its totient is φ = 97248988.

The previous prime is 97248979. The next prime is 97248997. The reversal of 97248989 is 98984279.

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., 70644025 + 26604964 = 8405^2 + 5158^2 .

It is a cyclic number.

It is not a de Polignac number, because 97248989 - 2⁸ = 97248733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97248979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48624494 + 48624495.

It is an arithmetic number, because the mean of its divisors is an integer number (48624495).

Almost surely, 2^97248989 is an apocalyptic number.

It is an amenable number.

97248989 is a deficient number, since it is larger than the sum of its proper divisors (1).

97248989 is an equidigital number, since it uses as much as digits as its factorization.

97248989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 56.

The square root of 97248989 is about 9861.4902017900. The cubic root of 97248989 is about 459.8628907688.

The spelling of 97248989 in words is "ninety-seven million, two hundred forty-eight thousand, nine hundred eighty-nine".