2863656 has 48 divisors (see below), whose sum is σ = 8012160. Its totient is φ = 923040.

The previous prime is 2863649. The next prime is 2863697. The reversal of 2863656 is 6563682.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2863656.

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, 1591 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (166920).

2^2863656 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 2863656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4006080).

2863656 is an abundant number, since it is smaller than the sum of its proper divisors (5148504).

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

2863656 is a wasteful number, since it uses less digits than its factorization.

2863656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1319 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2863656 is about 1692.2340263687. The cubic root of 2863656 is about 142.0060831884.

The spelling of 2863656 in words is "two million, eight hundred sixty-three thousand, six hundred fifty-six".