116918387 has 2 divisors, whose sum is σ = 116918388. Its totient is φ = 116918386.

The previous prime is 116918383. The next prime is 116918441. The reversal of 116918387 is 783819611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116918387 - 2² = 116918383 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116918383) 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, 58459193 + 58459194.

It is an arithmetic number, because the mean of its divisors is an integer number (58459194).

Almost surely, 2^116918387 is an apocalyptic number.

116918387 is a deficient number, since it is larger than the sum of its proper divisors (1).

116918387 is an equidigital number, since it uses as much as digits as its factorization.

116918387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 44.

The square root of 116918387 is about 10812.8806060180. The cubic root of 116918387 is about 488.9835754064.

The spelling of 116918387 in words is "one hundred sixteen million, nine hundred eighteen thousand, three hundred eighty-seven".