8425287 has 24 divisors (see below), whose sum is σ = 13248144. Its totient is φ = 5128704.

The previous prime is 8425279. The next prime is 8425289. The reversal of 8425287 is 7825248.

It is a happy number.

It is not a de Polignac number, because 8425287 - 2³ = 8425279 is a prime.

It is a super-2 number, since 2×8425287² = 141970922064738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8425289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12183 + ... + 12855.

It is an arithmetic number, because the mean of its divisors is an integer number (552006).

Almost surely, 2^8425287 is an apocalyptic number.

8425287 is a deficient number, since it is larger than the sum of its proper divisors (4822857).

8425287 is a wasteful number, since it uses less digits than its factorization.

8425287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 796 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 8425287 is about 2902.6344930080. The cubic root of 8425287 is about 203.4830480882.

The spelling of 8425287 in words is "eight million, four hundred twenty-five thousand, two hundred eighty-seven".