111705879 has 8 divisors (see below), whose sum is σ = 150477040. Its totient is φ = 73702656.

The previous prime is 111705863. The next prime is 111705931. The reversal of 111705879 is 978507111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111705879 - 2⁴ = 111705863 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 (111705859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191644 + ... + 192225.

It is an arithmetic number, because the mean of its divisors is an integer number (18809630).

Almost surely, 2^111705879 is an apocalyptic number.

111705879 is a deficient number, since it is larger than the sum of its proper divisors (38771161).

111705879 is an equidigital number, since it uses as much as digits as its factorization.

111705879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383969.

The product of its (nonzero) digits is 17640, while the sum is 39.

The square root of 111705879 is about 10569.1001982193. The cubic root of 111705879 is about 481.6061344545.

The spelling of 111705879 in words is "one hundred eleven million, seven hundred five thousand, eight hundred seventy-nine".