5779821 has 8 divisors (see below), whose sum is σ = 7725600. Its totient is φ = 3843632.

The previous prime is 5779799. The next prime is 5779841. The reversal of 5779821 is 1289775.

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

It is a cyclic number.

It is not a de Polignac number, because 5779821 - 2¹⁷ = 5648749 is a prime.

5779821 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5779821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5779841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846 + ... + 3503.

It is an arithmetic number, because the mean of its divisors is an integer number (965700).

Almost surely, 2^5779821 is an apocalyptic number.

It is an amenable number.

5779821 is a deficient number, since it is larger than the sum of its proper divisors (1945779).

5779821 is a wasteful number, since it uses less digits than its factorization.

5779821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795.

The product of its digits is 35280, while the sum is 39.

The square root of 5779821 is about 2404.1258286537. The cubic root of 5779821 is about 179.4615700247.

The spelling of 5779821 in words is "five million, seven hundred seventy-nine thousand, eight hundred twenty-one".