2821896 has 96 divisors (see below), whose sum is σ = 9547200. Its totient is φ = 731520.

The previous prime is 2821877. The next prime is 2821909. The reversal of 2821896 is 6981282.

2821896 = 26³ + 27³ + ... + 58³.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2821896.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5290 + ... + 5798.

It is an arithmetic number, because the mean of its divisors is an integer number (99450).

2^2821896 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 2821896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4773600).

2821896 is an abundant number, since it is smaller than the sum of its proper divisors (6725304).

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

2821896 is a wasteful number, since it uses less digits than its factorization.

2821896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 532 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2821896 is about 1679.8499933030. The cubic root of 2821896 is about 141.3124202671.

The spelling of 2821896 in words is "two million, eight hundred twenty-one thousand, eight hundred ninety-six".