116778997 has 8 divisors (see below), whose sum is σ = 123106400. Its totient is φ = 110469744.

The previous prime is 116778989. The next prime is 116779007. The reversal of 116778997 is 799877611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116778997 - 2³ = 116778989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116778097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9883 + ... + 18199.

It is an arithmetic number, because the mean of its divisors is an integer number (15388300).

Almost surely, 2^116778997 is an apocalyptic number.

It is an amenable number.

116778997 is a deficient number, since it is larger than the sum of its proper divisors (6327403).

116778997 is an equidigital number, since it uses as much as digits as its factorization.

116778997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075.

The product of its digits is 1333584, while the sum is 55.

The square root of 116778997 is about 10806.4331303164. The cubic root of 116778997 is about 488.7891761996.

The spelling of 116778997 in words is "one hundred sixteen million, seven hundred seventy-eight thousand, nine hundred ninety-seven".