97297839 has 12 divisors (see below), whose sum is σ = 140649600. Its totient is φ = 64815264.

The previous prime is 97297793. The next prime is 97297853. The reversal of 97297839 is 93879279.

It is not a de Polignac number, because 97297839 - 2⁸ = 97297583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97297339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11122 + ... + 17840.

It is an arithmetic number, because the mean of its divisors is an integer number (11720800).

Almost surely, 2^97297839 is an apocalyptic number.

97297839 is a deficient number, since it is larger than the sum of its proper divisors (43351761).

97297839 is a wasteful number, since it uses less digits than its factorization.

97297839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8334 (or 8331 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 97297839 is about 9863.9666970241. The cubic root of 97297839 is about 459.9398771453.

The spelling of 97297839 in words is "ninety-seven million, two hundred ninety-seven thousand, eight hundred thirty-nine".