116909971 has 2 divisors, whose sum is σ = 116909972. Its totient is φ = 116909970.

The previous prime is 116909963. The next prime is 116909987. The reversal of 116909971 is 179909611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116909971 - 2³ = 116909963 is a prime.

It is not a weakly prime, because it can be changed into another prime (116909921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58454985 + 58454986.

It is an arithmetic number, because the mean of its divisors is an integer number (58454986).

Almost surely, 2^116909971 is an apocalyptic number.

116909971 is a deficient number, since it is larger than the sum of its proper divisors (1).

116909971 is an equidigital number, since it uses as much as digits as its factorization.

116909971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 43.

The square root of 116909971 is about 10812.4914335226. The cubic root of 116909971 is about 488.9718424799.

The spelling of 116909971 in words is "one hundred sixteen million, nine hundred nine thousand, nine hundred seventy-one".