2791872 has 84 divisors (see below), whose sum is σ = 8281416. Its totient is φ = 898560.

The previous prime is 2791849. The next prime is 2791897. The reversal of 2791872 is 2781972.

2791872 = 48³ + 49³ + ... + 63³.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21247 + ... + 21377.

2^2791872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2791872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4140708).

2791872 is an abundant number, since it is smaller than the sum of its proper divisors (5489544).

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

2791872 is a wasteful number, since it uses less digits than its factorization.

2791872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 173 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2791872 is about 1670.8895834255. The cubic root of 2791872 is about 140.8094604525.

It can be divided in two parts, 2791 and 872, that added together give a palindrome (3663).

The spelling of 2791872 in words is "two million, seven hundred ninety-one thousand, eight hundred seventy-two".