97273997 has 2 divisors, whose sum is σ = 97273998. Its totient is φ = 97273996.

The previous prime is 97273963. The next prime is 97274003. The reversal of 97273997 is 79937279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52504516 + 44769481 = 7246^2 + 6691^2 .

It is a cyclic number.

It is not a de Polignac number, because 97273997 - 2¹² = 97269901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97273907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48636998 + 48636999.

It is an arithmetic number, because the mean of its divisors is an integer number (48636999).

Almost surely, 2^97273997 is an apocalyptic number.

It is an amenable number.

97273997 is a deficient number, since it is larger than the sum of its proper divisors (1).

97273997 is an equidigital number, since it uses as much as digits as its factorization.

97273997 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 97273997 is about 9862.7580828083. The cubic root of 97273997 is about 459.9023059705.

The spelling of 97273997 in words is "ninety-seven million, two hundred seventy-three thousand, nine hundred ninety-seven".