2031887 has 12 divisors (see below), whose sum is σ = 2402424. Its totient is φ = 1703520.

The previous prime is 2031863. The next prime is 2031893. The reversal of 2031887 is 7881302.

It is a de Polignac number, because none of the positive numbers 2^k-2031887 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 (2031187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1313 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (200202).

2^2031887 is an apocalyptic number.

2031887 is a deficient number, since it is larger than the sum of its proper divisors (370537).

2031887 is a wasteful number, since it uses less digits than its factorization.

2031887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2031887 is about 1425.4427382396. The cubic root of 2031887 is about 126.6581627101.

The spelling of 2031887 in words is "two million, thirty-one thousand, eight hundred eighty-seven".