111799807 has 4 divisors (see below), whose sum is σ = 127771216. Its totient is φ = 95828400.

The previous prime is 111799789. The next prime is 111799817. The reversal of 111799807 is 708997111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708997111 = 503 ⋅1409537.

It is a cyclic number.

It is not a de Polignac number, because 111799807 - 2⁷ = 111799679 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 (111799817) 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, 7985694 + ... + 7985707.

It is an arithmetic number, because the mean of its divisors is an integer number (31942804).

Almost surely, 2^111799807 is an apocalyptic number.

111799807 is a deficient number, since it is larger than the sum of its proper divisors (15971409).

111799807 is an equidigital number, since it uses as much as digits as its factorization.

111799807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15971408.

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 111799807 is about 10573.5427837599. The cubic root of 111799807 is about 481.7410829709.

The spelling of 111799807 in words is "one hundred eleven million, seven hundred ninety-nine thousand, eight hundred seven".