2773872 has 40 divisors (see below), whose sum is σ = 7963280. Its totient is φ = 924480.

The previous prime is 2773871. The next prime is 2773891. The reversal of 2773872 is 2783772.

2773872 is a `hidden beast` number, since 277 + 387 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2779 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (199082).

2^2773872 is an apocalyptic number.

It is an amenable number.

2773872 is an abundant number, since it is smaller than the sum of its proper divisors (5189408).

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

2773872 is a wasteful number, since it uses less digits than its factorization.

2773872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438 (or 6426 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 2773872 is about 1665.4945211558. The cubic root of 2773872 is about 140.5061947683.

The spelling of 2773872 in words is "two million, seven hundred seventy-three thousand, eight hundred seventy-two".