2797216 has 24 divisors (see below), whose sum is σ = 5601204. Its totient is φ = 1374720.

The previous prime is 2797213. The next prime is 2797217. The reversal of 2797216 is 6127972.

It can be written as a sum of positive squares in 2 ways, for example, as 2755600 + 41616 = 1660^2 + 204^2 .

It is not an unprimeable number, because it can be changed into a prime (2797211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236 + ... + 2668.

2^2797216 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 2797216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2800602).

2797216 is an abundant number, since it is smaller than the sum of its proper divisors (2803988).

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

2797216 is a wasteful number, since it uses less digits than its factorization.

2797216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504 (or 1496 counting only the distinct ones).

The product of its digits is 10584, while the sum is 34.

The square root of 2797216 is about 1672.4879670718. The cubic root of 2797216 is about 140.8992456275.

The spelling of 2797216 in words is "two million, seven hundred ninety-seven thousand, two hundred sixteen".