111417679 has 2 divisors, whose sum is σ = 111417680. Its totient is φ = 111417678.

The previous prime is 111417667. The next prime is 111417697. The reversal of 111417679 is 976714111.

Together with next prime (111417697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (976714111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111417679 - 2²³ = 103029071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111417629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55708839 + 55708840.

It is an arithmetic number, because the mean of its divisors is an integer number (55708840).

Almost surely, 2^111417679 is an apocalyptic number.

111417679 is a deficient number, since it is larger than the sum of its proper divisors (1).

111417679 is an equidigital number, since it uses as much as digits as its factorization.

111417679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 37.

The square root of 111417679 is about 10555.4573088995. The cubic root of 111417679 is about 481.1915981527.

The spelling of 111417679 in words is "one hundred eleven million, four hundred seventeen thousand, six hundred seventy-nine".