111799806 has 16 divisors (see below), whose sum is σ = 225690624. Its totient is φ = 36918104.

The previous prime is 111799789. The next prime is 111799817. The reversal of 111799806 is 608997111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86430 + ... + 87713.

It is an arithmetic number, because the mean of its divisors is an integer number (14105664).

Almost surely, 2^111799806 is an apocalyptic number.

111799806 is an abundant number, since it is smaller than the sum of its proper divisors (113890818).

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

111799806 is a wasteful number, since it uses less digits than its factorization.

111799806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174255.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 111799806 is about 10573.5427364720. The cubic root of 111799806 is about 481.7410815345.

The spelling of 111799806 in words is "one hundred eleven million, seven hundred ninety-nine thousand, eight hundred six".