2687984 has 20 divisors (see below), whose sum is σ = 5609016. Its totient is φ = 1240512.

The previous prime is 2687983. The next prime is 2687999. The reversal of 2687984 is 4897862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6254 + ... + 6669.

2^2687984 is an apocalyptic number.

It is an amenable number.

2687984 is an abundant number, since it is smaller than the sum of its proper divisors (2921032).

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

2687984 is a wasteful number, since it uses less digits than its factorization.

2687984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12944 (or 12938 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 2687984 is about 1639.5072430459. The cubic root of 2687984 is about 139.0407899198.

The spelling of 2687984 in words is "two million, six hundred eighty-seven thousand, nine hundred eighty-four".