116898961 has 2 divisors, whose sum is σ = 116898962. Its totient is φ = 116898960.

The previous prime is 116898959. The next prime is 116898979. The reversal of 116898961 is 169898611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116208400 + 690561 = 10780^2 + 831^2 .

It is an emirp because it is prime and its reverse (169898611) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 196868911 and 119868691.

It is a cyclic number.

It is not a de Polignac number, because 116898961 - 2¹ = 116898959 is a prime.

Together with 116898959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (116898911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58449480 + 58449481.

It is an arithmetic number, because the mean of its divisors is an integer number (58449481).

Almost surely, 2^116898961 is an apocalyptic number.

It is an amenable number.

116898961 is a deficient number, since it is larger than the sum of its proper divisors (1).

116898961 is an equidigital number, since it uses as much as digits as its factorization.

116898961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 49.

The square root of 116898961 is about 10811.9822881838. The cubic root of 116898961 is about 488.9564923521.

The spelling of 116898961 in words is "one hundred sixteen million, eight hundred ninety-eight thousand, nine hundred sixty-one".