2897225 has 18 divisors (see below), whose sum is σ = 3825834. Its totient is φ = 2176000.

The previous prime is 2897197. The next prime is 2897227. The reversal of 2897225 is 5227982.

It can be written as a sum of positive squares in 9 ways, for example, as 30976 + 2866249 = 176^2 + 1693^2 .

It is not a de Polignac number, because 2897225 - 2⁸ = 2896969 is a prime.

It is a Duffinian number.

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 17 ways as a sum of consecutive naturals, for example, 7025 + ... + 7425.

2^2897225 is an apocalyptic number.

2897225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2897225 is a deficient number, since it is larger than the sum of its proper divisors (928609).

2897225 is a wasteful number, since it uses less digits than its factorization.

2897225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 423 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 2897225 is about 1702.1236735326. The cubic root of 2897225 is about 142.5588143391.

It can be divided in two parts, 289 and 7225, that multiplied together give a square (2088025 = 1445²).

The spelling of 2897225 in words is "two million, eight hundred ninety-seven thousand, two hundred twenty-five".