115617792 has 78 divisors (see below), whose sum is σ = 311487348. Its totient is φ = 38141952.

The previous prime is 115617787. The next prime is 115617829. The reversal of 115617792 is 297716511.

It is a self number, because there is not a number n which added to its sum of digits gives 115617792.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1191888 + ... + 1191984.

Almost surely, 2^115617792 is an apocalyptic number.

115617792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115617792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155743674).

115617792 is an abundant number, since it is smaller than the sum of its proper divisors (195869556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115617792 is an frugal number, since it uses more digits than its factorization.

115617792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 102 counting only the distinct ones).

The product of its digits is 26460, while the sum is 39.

The square root of 115617792 is about 10752.5714133876. The cubic root of 115617792 is about 487.1636664997.

The spelling of 115617792 in words is "one hundred fifteen million, six hundred seventeen thousand, seven hundred ninety-two".