187996 has 12 divisors (see below), whose sum is σ = 336952. Its totient is φ = 91728.

The previous prime is 187987. The next prime is 188011. The reversal of 187996 is 699781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375 + ... + 718.

2¹⁸⁷⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

187996 is a deficient number, since it is larger than the sum of its proper divisors (148956).

187996 is a wasteful number, since it uses less digits than its factorization.

187996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1138 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 187996 is about 433.5850550930. The cubic root of 187996 is about 57.2861368694.

The spelling of 187996 in words is "one hundred eighty-seven thousand, nine hundred ninety-six".