2987944 has 16 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 1482672.

The previous prime is 2987923. The next prime is 2987947. The reversal of 2987944 is 4497892.

It is a self number, because there is not a number n which added to its sum of digits gives 2987944.

It is not an unprimeable number, because it can be changed into a prime (2987947) 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, 232 + ... + 2455.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

2^2987944 is an apocalyptic number.

It is an amenable number.

2987944 is a deficient number, since it is larger than the sum of its proper divisors (2656856).

2987944 is a wasteful number, since it uses less digits than its factorization.

2987944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2828 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 2987944 is about 1728.5670365942. The cubic root of 2987944 is about 144.0315003104.

The spelling of 2987944 in words is "two million, nine hundred eighty-seven thousand, nine hundred forty-four".