115866687 has 8 divisors (see below), whose sum is σ = 159816240. Its totient is φ = 74580800.

The previous prime is 115866683. The next prime is 115866691. The reversal of 115866687 is 786668511.

It is an interprime number because it is at equal distance from previous prime (115866683) and next prime (115866691).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115866687 - 2² = 115866683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115866683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665814 + ... + 665987.

It is an arithmetic number, because the mean of its divisors is an integer number (19977030).

Almost surely, 2^115866687 is an apocalyptic number.

115866687 is a deficient number, since it is larger than the sum of its proper divisors (43949553).

115866687 is a wasteful number, since it uses less digits than its factorization.

115866687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331833.

The product of its digits is 483840, while the sum is 48.

The square root of 115866687 is about 10764.1389344434. The cubic root of 115866687 is about 487.5129947884.

The spelling of 115866687 in words is "one hundred fifteen million, eight hundred sixty-six thousand, six hundred eighty-seven".