111716687 has 2 divisors, whose sum is σ = 111716688. Its totient is φ = 111716686.

The previous prime is 111716651. The next prime is 111716719. The reversal of 111716687 is 786617111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111716687 - 2²² = 107522383 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111716687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111716387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55858343 + 55858344.

It is an arithmetic number, because the mean of its divisors is an integer number (55858344).

Almost surely, 2^111716687 is an apocalyptic number.

111716687 is a deficient number, since it is larger than the sum of its proper divisors (1).

111716687 is an equidigital number, since it uses as much as digits as its factorization.

111716687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 38.

The square root of 111716687 is about 10569.6114876565. The cubic root of 111716687 is about 481.6216664070.

The spelling of 111716687 in words is "one hundred eleven million, seven hundred sixteen thousand, six hundred eighty-seven".