2821336 has 32 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 1192608.

The previous prime is 2821331. The next prime is 2821369. The reversal of 2821336 is 6331282.

It is a self number, because there is not a number n which added to its sum of digits gives 2821336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821331) 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, 4345 + ... + 4951.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

2^2821336 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 2821336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064320).

2821336 is an abundant number, since it is smaller than the sum of its proper divisors (3307304).

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

2821336 is a wasteful number, since it uses less digits than its factorization.

2821336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 699 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2821336 is about 1679.6833034831. The cubic root of 2821336 is about 141.3030719199.

The spelling of 2821336 in words is "two million, eight hundred twenty-one thousand, three hundred thirty-six".