113566779 has 12 divisors (see below), whose sum is σ = 170116856. Its totient is φ = 75711024.

The previous prime is 113566751. The next prime is 113566823. The reversal of 113566779 is 977665311.

113566779 is a `hidden beast` number, since 1 + 13 + 566 + 7 + 79 = 666.

It is not a de Polignac number, because 113566779 - 2¹⁵ = 113534011 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 14.

It is not an unprimeable number, because it can be changed into a prime (113566279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233434 + ... + 233919.

Almost surely, 2^113566779 is an apocalyptic number.

113566779 is a deficient number, since it is larger than the sum of its proper divisors (56550077).

113566779 is an frugal number, since it uses more digits than its factorization.

113566779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467368 (or 467356 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 113566779 is about 10656.7715092330. The cubic root of 113566779 is about 484.2657668300.

The spelling of 113566779 in words is "one hundred thirteen million, five hundred sixty-six thousand, seven hundred seventy-nine".