2897216 has 56 divisors (see below), whose sum is σ = 6827520. Its totient is φ = 1193472.

The previous prime is 2897197. The next prime is 2897227. The reversal of 2897216 is 6127982.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12881 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (121920).

2^2897216 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 2897216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3413760).

2897216 is an abundant number, since it is smaller than the sum of its proper divisors (3930304).

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

2897216 is a wasteful number, since it uses less digits than its factorization.

2897216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 261 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2897216 is about 1702.1210297743. The cubic root of 2897216 is about 142.5586667231.

It can be divided in two parts, 2897 and 216, that added together give a palindrome (3113).

The spelling of 2897216 in words is "two million, eight hundred ninety-seven thousand, two hundred sixteen".