115897797 has 20 divisors (see below), whose sum is σ = 175227360. Its totient is φ = 76329864.

The previous prime is 115897781. The next prime is 115897807. The reversal of 115897797 is 797798511.

It is not a de Polignac number, because 115897797 - 2⁴ = 115897781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115897097) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1897 + ... + 15342.

It is an arithmetic number, because the mean of its divisors is an integer number (8761368).

Almost surely, 2^115897797 is an apocalyptic number.

It is an amenable number.

115897797 is a deficient number, since it is larger than the sum of its proper divisors (59329563).

115897797 is an equidigital number, since it uses as much as digits as its factorization.

115897797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17334 (or 17325 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 54.

The square root of 115897797 is about 10765.5839135646. The cubic root of 115897797 is about 487.5566230088.

The spelling of 115897797 in words is "one hundred fifteen million, eight hundred ninety-seven thousand, seven hundred ninety-seven".