117686943 has 36 divisors (see below), whose sum is σ = 191776104. Its totient is φ = 68968800.

The previous prime is 117686939. The next prime is 117686953. The reversal of 117686943 is 349686711.

It is a happy number.

It is not a de Polignac number, because 117686943 - 2² = 117686939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117686953) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 94521 + ... + 95757.

It is an arithmetic number, because the mean of its divisors is an integer number (5327114).

Almost surely, 2^117686943 is an apocalyptic number.

117686943 is a deficient number, since it is larger than the sum of its proper divisors (74089161).

117686943 is a wasteful number, since it uses less digits than its factorization.

117686943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1282 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 117686943 is about 10848.3613048239. The cubic root of 117686943 is about 490.0526710006.

The spelling of 117686943 in words is "one hundred seventeen million, six hundred eighty-six thousand, nine hundred forty-three".