115838779 has 16 divisors (see below), whose sum is σ = 134929408. Its totient is φ = 97396992.

The previous prime is 115838777. The next prime is 115838783. The reversal of 115838779 is 977838511.

115838779 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 115838779 - 2¹ = 115838777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115838773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171787 + ... + 172459.

It is an arithmetic number, because the mean of its divisors is an integer number (8433088).

Almost surely, 2^115838779 is an apocalyptic number.

115838779 is a deficient number, since it is larger than the sum of its proper divisors (19090629).

115838779 is an equidigital number, since it uses as much as digits as its factorization.

115838779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its digits is 423360, while the sum is 49.

The square root of 115838779 is about 10762.8425148750. The cubic root of 115838779 is about 487.4738503615.

The spelling of 115838779 in words is "one hundred fifteen million, eight hundred thirty-eight thousand, seven hundred seventy-nine".