7897225 has 12 divisors (see below), whose sum is σ = 11191744. Its totient is φ = 5415120.

The previous prime is 7897207. The next prime is 7897247. The reversal of 7897225 is 5227987.

It is not a de Polignac number, because 7897225 - 2¹³ = 7889033 is a prime.

It is a Duffinian number.

7897225 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22389 + ... + 22738.

Almost surely, 2^7897225 is an apocalyptic number.

It is an amenable number.

7897225 is a deficient number, since it is larger than the sum of its proper divisors (3294519).

7897225 is a wasteful number, since it uses less digits than its factorization.

7897225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45144 (or 45139 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 7897225 is about 2810.2001708063. The cubic root of 7897225 is about 199.1398476597.

The spelling of 7897225 in words is "seven million, eight hundred ninety-seven thousand, two hundred twenty-five".