111678859 has 2 divisors, whose sum is σ = 111678860. Its totient is φ = 111678858.

The previous prime is 111678817. The next prime is 111678877. The reversal of 111678859 is 958876111.

It is a strong prime.

It is an emirp because it is prime and its reverse (958876111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111678859 - 2¹³ = 111670667 is a prime.

It is not a weakly prime, because it can be changed into another prime (111678659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55839429 + 55839430.

It is an arithmetic number, because the mean of its divisors is an integer number (55839430).

Almost surely, 2^111678859 is an apocalyptic number.

111678859 is a deficient number, since it is larger than the sum of its proper divisors (1).

111678859 is an equidigital number, since it uses as much as digits as its factorization.

111678859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 46.

The square root of 111678859 is about 10567.8218664018. The cubic root of 111678859 is about 481.5673001895.

The spelling of 111678859 in words is "one hundred eleven million, six hundred seventy-eight thousand, eight hundred fifty-nine".