2583987 has 16 divisors (see below), whose sum is σ = 4074240. Its totient is φ = 1425312.

The previous prime is 2583979. The next prime is 2584007. The reversal of 2583987 is 7893852.

It is not a de Polignac number, because 2583987 - 2³ = 2583979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2583907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 2730.

It is an arithmetic number, because the mean of its divisors is an integer number (254640).

2^2583987 is an apocalyptic number.

2583987 is a deficient number, since it is larger than the sum of its proper divisors (1490253).

2583987 is a wasteful number, since it uses less digits than its factorization.

2583987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282.

The product of its digits is 120960, while the sum is 42.

The square root of 2583987 is about 1607.4784601978. The cubic root of 2583987 is about 137.2240105932.

It can be divided in two parts, 2583 and 987, that added together give a triangular number (3570 = T₈₄).

The spelling of 2583987 in words is "two million, five hundred eighty-three thousand, nine hundred eighty-seven".