112979857 has 2 divisors, whose sum is σ = 112979858. Its totient is φ = 112979856.

The previous prime is 112979843. The next prime is 112979863. The reversal of 112979857 is 758979211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109327936 + 3651921 = 10456^2 + 1911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112979857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112979857.

It is not a weakly prime, because it can be changed into another prime (112979897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56489928 + 56489929.

It is an arithmetic number, because the mean of its divisors is an integer number (56489929).

Almost surely, 2^112979857 is an apocalyptic number.

It is an amenable number.

112979857 is a deficient number, since it is larger than the sum of its proper divisors (1).

112979857 is an equidigital number, since it uses as much as digits as its factorization.

112979857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 49.

The square root of 112979857 is about 10629.1983234861. The cubic root of 112979857 is about 483.4300844234.

The spelling of 112979857 in words is "one hundred twelve million, nine hundred seventy-nine thousand, eight hundred fifty-seven".