8717425 has 12 divisors (see below), whose sum is σ = 10883356. Its totient is φ = 6926400.

The previous prime is 8717393. The next prime is 8717491. The reversal of 8717425 is 5247178.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 214369 + 8503056 = 463^2 + 2916^2 .

It is not a de Polignac number, because 8717425 - 2⁵ = 8717393 is a prime.

It is a Duffinian number.

8717425 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, 2815 + ... + 5035.

Almost surely, 2^8717425 is an apocalyptic number.

It is an amenable number.

8717425 is a deficient number, since it is larger than the sum of its proper divisors (2165931).

8717425 is a wasteful number, since it uses less digits than its factorization.

8717425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2383 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 8717425 is about 2952.5285773384. The cubic root of 8717425 is about 205.8082310609.

The spelling of 8717425 in words is "eight million, seven hundred seventeen thousand, four hundred twenty-five".