2815872 has 32 divisors (see below), whose sum is σ = 7480680. Its totient is φ = 938496.

The previous prime is 2815861. The next prime is 2815877. The reversal of 2815872 is 2785182.

2815872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815877) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3283 + ... + 4050.

2^2815872 is an apocalyptic number.

It is an amenable number.

2815872 is an abundant number, since it is smaller than the sum of its proper divisors (4664808).

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

2815872 is an equidigital number, since it uses as much as digits as its factorization.

2815872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7350 (or 7338 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 2815872 is about 1678.0560181353. The cubic root of 2815872 is about 141.2117937756.

The spelling of 2815872 in words is "two million, eight hundred fifteen thousand, eight hundred seventy-two".