4287231 has 12 divisors (see below), whose sum is σ = 6669208. Its totient is φ = 2638224.

The previous prime is 4287221. The next prime is 4287233. The reversal of 4287231 is 1327824.

4287231 is a `hidden beast` number, since 428 + 7 + 231 = 666.

It is not a de Polignac number, because 4287231 - 2⁹ = 4286719 is a prime.

It is a super-2 number, since 2×4287231² = 36760699294722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4287195 and 4287204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18205 + ... + 18438.

Almost surely, 2^4287231 is an apocalyptic number.

4287231 is a deficient number, since it is larger than the sum of its proper divisors (2381977).

4287231 is a wasteful number, since it uses less digits than its factorization.

4287231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36662 (or 36659 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 4287231 is about 2070.5629669247. The cubic root of 4287231 is about 162.4522115887.

The spelling of 4287231 in words is "four million, two hundred eighty-seven thousand, two hundred thirty-one".