97297397 has 2 divisors, whose sum is σ = 97297398. Its totient is φ = 97297396.

The previous prime is 97297391. The next prime is 97297399. The reversal of 97297397 is 79379279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51179716 + 46117681 = 7154^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 97297397 - 2¹⁴ = 97281013 is a prime.

Together with 97297399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97297391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48648698 + 48648699.

It is an arithmetic number, because the mean of its divisors is an integer number (48648699).

Almost surely, 2^97297397 is an apocalyptic number.

97297397 is the 5273-rd centered heptagonal number.

It is an amenable number.

97297397 is a deficient number, since it is larger than the sum of its proper divisors (1).

97297397 is an equidigital number, since it uses as much as digits as its factorization.

97297397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500282, while the sum is 53.

The square root of 97297397 is about 9863.9442922190. The cubic root of 97297397 is about 459.9391806799.

The spelling of 97297397 in words is "ninety-seven million, two hundred ninety-seven thousand, three hundred ninety-seven".