187997116 has 12 divisors (see below), whose sum is σ = 329481432. Its totient is φ = 93859568.

The previous prime is 187997107. The next prime is 187997123. The reversal of 187997116 is 611799781.

It is a self number, because there is not a number n which added to its sum of digits gives 187997116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31675 + ... + 37138.

It is an arithmetic number, because the mean of its divisors is an integer number (27456786).

Almost surely, 2^187997116 is an apocalyptic number.

It is an amenable number.

187997116 is a deficient number, since it is larger than the sum of its proper divisors (141484316).

187997116 is a wasteful number, since it uses less digits than its factorization.

187997116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69500 (or 69498 counting only the distinct ones).

The product of its digits is 190512, while the sum is 49.

The square root of 187997116 is about 13711.2040317399. The cubic root of 187997116 is about 572.8625022501.

The spelling of 187997116 in words is "one hundred eighty-seven million, nine hundred ninety-seven thousand, one hundred sixteen".