8427225 has 12 divisors (see below), whose sum is σ = 13933136. Its totient is φ = 4494480.

The previous prime is 8427217. The next prime is 8427233. The reversal of 8427225 is 5227248.

It is an interprime number because it is at equal distance from previous prime (8427217) and next prime (8427233).

It is not a de Polignac number, because 8427225 - 2³ = 8427217 is a prime.

It is a Duffinian number.

It is a Curzon number.

8427225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8427192 and 8427201.

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, 56107 + ... + 56256.

Almost surely, 2^8427225 is an apocalyptic number.

It is an amenable number.

8427225 is a deficient number, since it is larger than the sum of its proper divisors (5505911).

8427225 is a wasteful number, since it uses less digits than its factorization.

8427225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112376 (or 112371 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 8427225 is about 2902.9683084732. The cubic root of 8427225 is about 203.4986487403.

The spelling of 8427225 in words is "eight million, four hundred twenty-seven thousand, two hundred twenty-five".