111713879 has 2 divisors, whose sum is σ = 111713880. Its totient is φ = 111713878.

The previous prime is 111713867. The next prime is 111713881. The reversal of 111713879 is 978317111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111713879 is a prime.

It is a super-2 number, since 2×111713879² = 24959981522453282, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 111713881, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 111713879 parts by 14947 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111713839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55856939 + 55856940.

It is an arithmetic number, because the mean of its divisors is an integer number (55856940).

Almost surely, 2^111713879 is an apocalyptic number.

111713879 is a deficient number, since it is larger than the sum of its proper divisors (1).

111713879 is an equidigital number, since it uses as much as digits as its factorization.

111713879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 38.

The square root of 111713879 is about 10569.4786531787. The cubic root of 111713879 is about 481.6176311848.

The spelling of 111713879 in words is "one hundred eleven million, seven hundred thirteen thousand, eight hundred seventy-nine".