113609688 has 64 divisors (see below), whose sum is σ = 292723200. Its totient is φ = 36721920.

The previous prime is 113609609. The next prime is 113609693. The reversal of 113609688 is 886906311.

It is a super-2 number, since 2×113609688² = 25814322414914688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258573 + ... + 259011.

It is an arithmetic number, because the mean of its divisors is an integer number (4573800).

Almost surely, 2^113609688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113609688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146361600).

113609688 is an abundant number, since it is smaller than the sum of its proper divisors (179113512).

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

113609688 is a wasteful number, since it uses less digits than its factorization.

113609688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 113609688 is about 10658.7845460915. The cubic root of 113609688 is about 484.3267492860.

The spelling of 113609688 in words is "one hundred thirteen million, six hundred nine thousand, six hundred eighty-eight".