116980989 has 4 divisors (see below), whose sum is σ = 155974656. Its totient is φ = 77987324.

The previous prime is 116980957. The next prime is 116980991. The reversal of 116980989 is 989089611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116980989 - 2⁵ = 116980957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116980999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19496829 + ... + 19496834.

It is an arithmetic number, because the mean of its divisors is an integer number (38993664).

Almost surely, 2^116980989 is an apocalyptic number.

It is an amenable number.

116980989 is a deficient number, since it is larger than the sum of its proper divisors (38993667).

116980989 is an equidigital number, since it uses as much as digits as its factorization.

116980989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38993666.

The product of its (nonzero) digits is 279936, while the sum is 51.

The square root of 116980989 is about 10815.7750069054. The cubic root of 116980989 is about 489.0708325344.

The spelling of 116980989 in words is "one hundred sixteen million, nine hundred eighty thousand, nine hundred eighty-nine".