113603887 has 4 divisors (see below), whose sum is σ = 113625616. Its totient is φ = 113582160.

The previous prime is 113603881. The next prime is 113603939. The reversal of 113603887 is 788306311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113603887 - 2³ = 113603879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113603881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2278 + ... + 15244.

It is an arithmetic number, because the mean of its divisors is an integer number (28406404).

Almost surely, 2^113603887 is an apocalyptic number.

113603887 is a deficient number, since it is larger than the sum of its proper divisors (21729).

113603887 is an equidigital number, since it uses as much as digits as its factorization.

113603887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21728.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 113603887 is about 10658.5124196578. The cubic root of 113603887 is about 484.3185057774.

The spelling of 113603887 in words is "one hundred thirteen million, six hundred three thousand, eight hundred eighty-seven".