5821663 has 8 divisors (see below), whose sum is σ = 6084000. Its totient is φ = 5563488.

The previous prime is 5821643. The next prime is 5821687. The reversal of 5821663 is 3661285.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5821663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5821603) 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, 2013 + ... + 3961.

It is an arithmetic number, because the mean of its divisors is an integer number (760500).

Almost surely, 2^5821663 is an apocalyptic number.

5821663 is a deficient number, since it is larger than the sum of its proper divisors (262337).

5821663 is a wasteful number, since it uses less digits than its factorization.

5821663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

The product of its digits is 8640, while the sum is 31.

The square root of 5821663 is about 2412.8122595842. The cubic root of 5821663 is about 179.8935893690.

It can be divided in two parts, 582166 and 3, that added together give a square (582169 = 763²).

The spelling of 5821663 in words is "five million, eight hundred twenty-one thousand, six hundred sixty-three".