4321287 has 6 divisors (see below), whose sum is σ = 6241872. Its totient is φ = 2880852.

The previous prime is 4321259. The next prime is 4321327. The reversal of 4321287 is 7821234.

It is not a de Polignac number, because 4321287 - 2¹² = 4317191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4321287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321237) 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, 240063 + ... + 240080.

It is an arithmetic number, because the mean of its divisors is an integer number (1040312).

Almost surely, 2^4321287 is an apocalyptic number.

4321287 is a deficient number, since it is larger than the sum of its proper divisors (1920585).

4321287 is a wasteful number, since it uses less digits than its factorization.

4321287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480149 (or 480146 counting only the distinct ones).

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

The square root of 4321287 is about 2078.7705501089. The cubic root of 4321287 is about 162.8812287948.

The spelling of 4321287 in words is "four million, three hundred twenty-one thousand, two hundred eighty-seven".