115677779 has 10 divisors (see below), whose sum is σ = 134952180. Its totient is φ = 99150324.

The previous prime is 115677773. The next prime is 115677797. The reversal of 115677779 is 977776511.

It is not a de Polignac number, because 115677779 - 2²⁴ = 98900563 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (115677773) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21689 + ... + 26490.

It is an arithmetic number, because the mean of its divisors is an integer number (13495218).

Almost surely, 2^115677779 is an apocalyptic number.

115677779 is a deficient number, since it is larger than the sum of its proper divisors (19274401).

115677779 is an frugal number, since it uses more digits than its factorization.

115677779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48207 (or 48186 counting only the distinct ones).

The product of its digits is 648270, while the sum is 50.

The square root of 115677779 is about 10755.3604774550. The cubic root of 115677779 is about 487.2479050750.

The spelling of 115677779 in words is "one hundred fifteen million, six hundred seventy-seven thousand, seven hundred seventy-nine".