113666889 has 16 divisors (see below), whose sum is σ = 173770112. Its totient is φ = 64741248.

The previous prime is 113666869. The next prime is 113666893. The reversal of 113666889 is 988666311.

It is not a de Polignac number, because 113666889 - 2¹⁵ = 113634121 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (113666809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2074 + ... + 15219.

It is an arithmetic number, because the mean of its divisors is an integer number (10860632).

Almost surely, 2^113666889 is an apocalyptic number.

It is an amenable number.

113666889 is a deficient number, since it is larger than the sum of its proper divisors (60103223).

113666889 is a wasteful number, since it uses less digits than its factorization.

113666889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17616.

The product of its digits is 373248, while the sum is 48.

The square root of 113666889 is about 10661.4674881088. The cubic root of 113666889 is about 484.4080197206.

The spelling of 113666889 in words is "one hundred thirteen million, six hundred sixty-six thousand, eight hundred eighty-nine".