116991067 has 2 divisors, whose sum is σ = 116991068. Its totient is φ = 116991066.

The previous prime is 116991029. The next prime is 116991103. The reversal of 116991067 is 760199611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116991067 is a prime.

It is not a weakly prime, because it can be changed into another prime (116991167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58495533 + 58495534.

It is an arithmetic number, because the mean of its divisors is an integer number (58495534).

Almost surely, 2^116991067 is an apocalyptic number.

116991067 is a deficient number, since it is larger than the sum of its proper divisors (1).

116991067 is an equidigital number, since it uses as much as digits as its factorization.

116991067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 116991067 is about 10816.2408904388. The cubic root of 116991067 is about 489.0848767375.

The spelling of 116991067 in words is "one hundred sixteen million, nine hundred ninety-one thousand, sixty-seven".