2187882 has 24 divisors (see below), whose sum is σ = 4772196. Its totient is φ = 724416.

The previous prime is 2187877. The next prime is 2187901. The reversal of 2187882 is 2887812.

It can be written as a sum of positive squares in 2 ways, for example, as 2187441 + 441 = 1479^2 + 21^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3238 + ... + 3854.

2^2187882 is an apocalyptic number.

2187882 is an abundant number, since it is smaller than the sum of its proper divisors (2584314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2187882 is a wasteful number, since it uses less digits than its factorization.

2187882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 819 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 2187882 is about 1479.1490797077. The cubic root of 2187882 is about 129.8199084217.

It can be divided in two parts, 218 and 7882, that added together give a square (8100 = 90²).

The spelling of 2187882 in words is "two million, one hundred eighty-seven thousand, eight hundred eighty-two".