187964912 has 20 divisors (see below), whose sum is σ = 370154136. Its totient is φ = 92441280.

The previous prime is 187964897. The next prime is 187964963. The reversal of 187964912 is 219469781.

187964912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 95318 + ... + 97269.

Almost surely, 2^187964912 is an apocalyptic number.

It is an amenable number.

187964912 is a deficient number, since it is larger than the sum of its proper divisors (182189224).

187964912 is a wasteful number, since it uses less digits than its factorization.

187964912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192656 (or 192650 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 187964912 is about 13710.0296133889. The cubic root of 187964912 is about 572.8297898378.

The spelling of 187964912 in words is "one hundred eighty-seven million, nine hundred sixty-four thousand, nine hundred twelve".