115928879 has 4 divisors (see below), whose sum is σ = 126467880. Its totient is φ = 105389880.

The previous prime is 115928867. The next prime is 115928887. The reversal of 115928879 is 978829511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115928879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115928849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5269484 + ... + 5269505.

It is an arithmetic number, because the mean of its divisors is an integer number (31616970).

Almost surely, 2^115928879 is an apocalyptic number.

115928879 is a deficient number, since it is larger than the sum of its proper divisors (10539001).

115928879 is a wasteful number, since it uses less digits than its factorization.

115928879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10539000.

The product of its digits is 362880, while the sum is 50.

The square root of 115928879 is about 10767.0273984977. The cubic root of 115928879 is about 487.6002041663.

The spelling of 115928879 in words is "one hundred fifteen million, nine hundred twenty-eight thousand, eight hundred seventy-nine".