115963859 has 12 divisors (see below), whose sum is σ = 134175720. Its totient is φ = 99871200.

The previous prime is 115963849. The next prime is 115963871. The reversal of 115963859 is 958369511.

It is not a de Polignac number, because 115963859 - 2¹⁶ = 115898323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115963849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22922 + ... + 27519.

It is an arithmetic number, because the mean of its divisors is an integer number (11181310).

Almost surely, 2^115963859 is an apocalyptic number.

115963859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

115963859 is a deficient number, since it is larger than the sum of its proper divisors (18211861).

115963859 is a wasteful number, since it uses less digits than its factorization.

115963859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50482 (or 50471 counting only the distinct ones).

The product of its digits is 291600, while the sum is 47.

The square root of 115963859 is about 10768.6516797601. The cubic root of 115963859 is about 487.6492415304.

The spelling of 115963859 in words is "one hundred fifteen million, nine hundred sixty-three thousand, eight hundred fifty-nine".