115396779 has 4 divisors (see below), whose sum is σ = 153862376. Its totient is φ = 76931184.

The previous prime is 115396769. The next prime is 115396789. The reversal of 115396779 is 977693511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (115396769) and next prime (115396789).

It is not a de Polignac number, because 115396779 - 2⁷ = 115396651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115396739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19232794 + ... + 19232799.

It is an arithmetic number, because the mean of its divisors is an integer number (38465594).

Almost surely, 2^115396779 is an apocalyptic number.

115396779 is a deficient number, since it is larger than the sum of its proper divisors (38465597).

115396779 is an equidigital number, since it uses as much as digits as its factorization.

115396779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38465596.

The product of its digits is 357210, while the sum is 48.

The square root of 115396779 is about 10742.2892811542. The cubic root of 115396779 is about 486.8530505731.

The spelling of 115396779 in words is "one hundred fifteen million, three hundred ninety-six thousand, seven hundred seventy-nine".