8425 has 6 divisors (see below), whose sum is σ = 10478. Its totient is φ = 6720.

The previous prime is 8423. The next prime is 8429. The reversal of 8425 is 5248.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 144 + 8281 = 12^2 + 91^2 .

It is not a de Polignac number, because 8425 - 2¹ = 8423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144 + ... + 193.

2⁸⁴²⁵ is an apocalyptic number.

It is an amenable number.

8425 is a deficient number, since it is larger than the sum of its proper divisors (2053).

8425 is a wasteful number, since it uses less digits than its factorization.

8425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 342 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 8425 is about 91.7877987534. The cubic root of 8425 is about 20.3480737572.

The spelling of 8425 in words is "eight thousand, four hundred twenty-five".