115984791 has 40 divisors (see below), whose sum is σ = 194742240. Its totient is φ = 68257728.

The previous prime is 115984787. The next prime is 115984793. The reversal of 115984791 is 197489511.

It is a happy number.

115984791 is a `hidden beast` number, since 11 + 598 + 47 + 9 + 1 = 666.

It is not a de Polignac number, because 115984791 - 2² = 115984787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115984793) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21825 + ... + 26613.

It is an arithmetic number, because the mean of its divisors is an integer number (4868556).

Almost surely, 2^115984791 is an apocalyptic number.

115984791 is a deficient number, since it is larger than the sum of its proper divisors (78757449).

115984791 is a wasteful number, since it uses less digits than its factorization.

115984791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837 (or 4828 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 115984791 is about 10769.6235310247. The cubic root of 115984791 is about 487.6785807283.

It can be divided in two parts, 115 and 984791, that added together give a triangular number (984906 = T₁₄₀₃).

The spelling of 115984791 in words is "one hundred fifteen million, nine hundred eighty-four thousand, seven hundred ninety-one".