115967879 has 4 divisors (see below), whose sum is σ = 119102184. Its totient is φ = 112833576.

The previous prime is 115967851. The next prime is 115967923. The reversal of 115967879 is 978769511.

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-115967879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115967879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115967809) 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, 1567097 + ... + 1567170.

It is an arithmetic number, because the mean of its divisors is an integer number (29775546).

Almost surely, 2^115967879 is an apocalyptic number.

115967879 is a deficient number, since it is larger than the sum of its proper divisors (3134305).

115967879 is an equidigital number, since it uses as much as digits as its factorization.

115967879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134304.

The product of its digits is 952560, while the sum is 53.

The square root of 115967879 is about 10768.8383310365. The cubic root of 115967879 is about 487.6548764104.

The spelling of 115967879 in words is "one hundred fifteen million, nine hundred sixty-seven thousand, eight hundred seventy-nine".