5821287 has 8 divisors (see below), whose sum is σ = 7779840. Its totient is φ = 3871800.

The previous prime is 5821271. The next prime is 5821289. The reversal of 5821287 is 7821285.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5821287 - 2⁴ = 5821271 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5821289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (972480).

Almost surely, 2^5821287 is an apocalyptic number.

5821287 is a deficient number, since it is larger than the sum of its proper divisors (1958553).

5821287 is a wasteful number, since it uses less digits than its factorization.

5821287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533.

The product of its digits is 8960, while the sum is 33.

The square root of 5821287 is about 2412.7343409501. The cubic root of 5821287 is about 179.8897163951.

The spelling of 5821287 in words is "five million, eight hundred twenty-one thousand, two hundred eighty-seven".