2897228 has 12 divisors (see below), whose sum is σ = 5083680. Its totient is φ = 1444752.

The previous prime is 2897227. The next prime is 2897249. The reversal of 2897228 is 8227982.

It is a d-powerful number, because it can be written as 2² + 8⁴ + 9⁶ + 7³ + 2¹¹ + 2²¹ + 8⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 2897191 and 2897200.

It is not an unprimeable number, because it can be changed into a prime (2897227) 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, 1325 + ... + 2747.

It is an arithmetic number, because the mean of its divisors is an integer number (423640).

2^2897228 is an apocalyptic number.

It is an amenable number.

2897228 is a deficient number, since it is larger than the sum of its proper divisors (2186452).

2897228 is a wasteful number, since it uses less digits than its factorization.

2897228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936 (or 1934 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 2897228 is about 1702.1245547844. The cubic root of 2897228 is about 142.5588635444.

It can be divided in two parts, 2897 and 228, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2897228 in words is "two million, eight hundred ninety-seven thousand, two hundred twenty-eight".