2856828 has 24 divisors (see below), whose sum is σ = 7179088. Its totient is φ = 878976.

The previous prime is 2856823. The next prime is 2856857. The reversal of 2856828 is 8286582.

2856828 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2856828² = 16322932443168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856823) 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, 9001 + ... + 9312.

2^2856828 is an apocalyptic number.

It is an amenable number.

2856828 is an abundant number, since it is smaller than the sum of its proper divisors (4322260).

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

2856828 is a wasteful number, since it uses less digits than its factorization.

2856828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333 (or 18331 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 2856828 is about 1690.2153708921. The cubic root of 2856828 is about 141.8931286065.

The spelling of 2856828 in words is "two million, eight hundred fifty-six thousand, eight hundred twenty-eight".