2839972 has 24 divisors (see below), whose sum is σ = 5277440. Its totient is φ = 1334880.

The previous prime is 2839961. The next prime is 2839981. The reversal of 2839972 is 2799382.

2839972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4279 + ... + 4897.

2^2839972 is an apocalyptic number.

It is an amenable number.

2839972 is a deficient number, since it is larger than the sum of its proper divisors (2437468).

2839972 is a wasteful number, since it uses less digits than its factorization.

2839972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 689 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 2839972 is about 1685.2216471432. The cubic root of 2839972 is about 141.6135096221.

It can be divided in two parts, 28 and 39972, that added together give a square (40000 = 200²).

The spelling of 2839972 in words is "two million, eight hundred thirty-nine thousand, nine hundred seventy-two".