115686791 has 8 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 105003640.

The previous prime is 115686749. The next prime is 115686799. The reversal of 115686791 is 197686511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115686791 - 2²² = 111492487 is a prime.

It is a super-2 number, since 2×115686791² = 26766867223755362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115686799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 15228.

It is an arithmetic number, because the mean of its divisors is an integer number (15800400).

Almost surely, 2^115686791 is an apocalyptic number.

115686791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115686791 is a deficient number, since it is larger than the sum of its proper divisors (10716409).

115686791 is a wasteful number, since it uses less digits than its factorization.

115686791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16629.

The product of its digits is 90720, while the sum is 44.

The square root of 115686791 is about 10755.7794231752. The cubic root of 115686791 is about 487.2605579346.

Adding to 115686791 its product of digits (90720), we get a palindrome (115777511).

The spelling of 115686791 in words is "one hundred fifteen million, six hundred eighty-six thousand, seven hundred ninety-one".