116979897 has 4 divisors (see below), whose sum is σ = 155973200. Its totient is φ = 77986596.

The previous prime is 116979871. The next prime is 116979899. The reversal of 116979897 is 798979611.

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 not a de Polignac number, because 116979897 - 2⁸ = 116979641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116979899) 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 in 3 ways as a sum of consecutive naturals, for example, 19496647 + ... + 19496652.

It is an arithmetic number, because the mean of its divisors is an integer number (38993300).

Almost surely, 2^116979897 is an apocalyptic number.

It is an amenable number.

116979897 is a deficient number, since it is larger than the sum of its proper divisors (38993303).

116979897 is an equidigital number, since it uses as much as digits as its factorization.

116979897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38993302.

The product of its digits is 1714608, while the sum is 57.

The square root of 116979897 is about 10815.7245249683. The cubic root of 116979897 is about 489.0693107286.

The spelling of 116979897 in words is "one hundred sixteen million, nine hundred seventy-nine thousand, eight hundred ninety-seven".