5644287 has 36 divisors (see below), whose sum is σ = 9212112. Its totient is φ = 3326400.

The previous prime is 5644283. The next prime is 5644319. The reversal of 5644287 is 7824465.

5644287 is a `hidden beast` number, since 5 + 644 + 2 + 8 + 7 = 666.

It is not a de Polignac number, because 5644287 - 2² = 5644283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77283 + ... + 77355.

It is an arithmetic number, because the mean of its divisors is an integer number (255892).

Almost surely, 2^5644287 is an apocalyptic number.

5644287 is a deficient number, since it is larger than the sum of its proper divisors (3567825).

5644287 is a wasteful number, since it uses less digits than its factorization.

5644287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 158 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 5644287 is about 2375.7708222806. The cubic root of 5644287 is about 178.0476979442.

It can be divided in two parts, 564 and 4287, that added together give a triangular number (4851 = T₉₈).

The spelling of 5644287 in words is "five million, six hundred forty-four thousand, two hundred eighty-seven".