4231287 has 12 divisors (see below), whose sum is σ = 6377904. Its totient is φ = 2698080.

The previous prime is 4231277. The next prime is 4231291. The reversal of 4231287 is 7821324.

It is a de Polignac number, because none of the positive numbers 2^k-4231287 is a prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 4231287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231207) 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, 10014 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (531492).

Almost surely, 2^4231287 is an apocalyptic number.

4231287 is a deficient number, since it is larger than the sum of its proper divisors (2146617).

4231287 is a wasteful number, since it uses less digits than its factorization.

4231287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470 (or 20467 counting only the distinct ones).

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

The square root of 4231287 is about 2057.0092367318. The cubic root of 4231287 is about 161.7425035962.

It can be divided in two parts, 42 and 31287, that added together give a square (31329 = 177²).

The spelling of 4231287 in words is "four million, two hundred thirty-one thousand, two hundred eighty-seven".