187042887 has 6 divisors (see below), whose sum is σ = 270173072. Its totient is φ = 124695252.

The previous prime is 187042799. The next prime is 187042901. The reversal of 187042887 is 788240781.

It is not a de Polignac number, because 187042887 - 2¹⁰ = 187041863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187042087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10391263 + ... + 10391280.

Almost surely, 2^187042887 is an apocalyptic number.

187042887 is a deficient number, since it is larger than the sum of its proper divisors (83130185).

187042887 is a wasteful number, since it uses less digits than its factorization.

187042887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20782549 (or 20782546 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 187042887 is about 13676.3623453022. The cubic root of 187042887 is about 571.8916194400.

The spelling of 187042887 in words is "one hundred eighty-seven million, forty-two thousand, eight hundred eighty-seven".