1587984 has 20 divisors (see below), whose sum is σ = 4102416. Its totient is φ = 529312.

The previous prime is 1587977. The next prime is 1587991. The reversal of 1587984 is 4897851.

It is an interprime number because it is at equal distance from previous prime (1587977) and next prime (1587991).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16494 + ... + 16589.

2^1587984 is an apocalyptic number.

It is an amenable number.

1587984 is an abundant number, since it is smaller than the sum of its proper divisors (2514432).

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

1587984 is a wasteful number, since it uses less digits than its factorization.

1587984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33094 (or 33088 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 1587984 is about 1260.1523717392. The cubic root of 1587984 is about 116.6671818571.

The spelling of 1587984 in words is "one million, five hundred eighty-seven thousand, nine hundred eighty-four".