64287 has 8 divisors (see below), whose sum is σ = 95280. Its totient is φ = 42840.

The previous prime is 64283. The next prime is 64301. The reversal of 64287 is 78246.

It is not a de Polignac number, because 64287 - 2² = 64283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2381 = 64287 / (6 + 4 + 2 + 8 + 7).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 64287.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64287.

It is not an unprimeable number, because it can be changed into a prime (64283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164 + ... + 1217.

It is an arithmetic number, because the mean of its divisors is an integer number (11910).

2⁶⁴²⁸⁷ is an apocalyptic number.

64287 is a deficient number, since it is larger than the sum of its proper divisors (30993).

64287 is a wasteful number, since it uses less digits than its factorization.

64287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2384 counting only the distinct ones).

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

The square root of 64287 is about 253.5488118686. The cubic root of 64287 is about 40.0597025126.

It can be divided in two parts, 642 and 87, that added together give a 6-th power (729 = 3⁶).

The spelling of 64287 in words is "sixty-four thousand, two hundred eighty-seven".