2784872 has 16 divisors (see below), whose sum is σ = 5529060. Its totient is φ = 1310464.

The previous prime is 2784871. The next prime is 2784883.

2784872 is nontrivially palindromic in base 10.

2784872 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2540836 + 244036 = 1594^2 + 494^2 .

It is not an unprimeable number, because it can be changed into a prime (2784871) 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, 10103 + ... + 10374.

2^2784872 is an apocalyptic number.

It is an amenable number.

2784872 is a deficient number, since it is larger than the sum of its proper divisors (2744188).

2784872 is a wasteful number, since it uses less digits than its factorization.

2784872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20500 (or 20496 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 2784872 is about 1668.7935762101. The cubic root of 2784872 is about 140.6916791272.

It can be divided in two parts, 27848 and 72, that multiplied together give a square (2005056 = 1416²).

The spelling of 2784872 in words is "two million, seven hundred eighty-four thousand, eight hundred seventy-two".