5831821 has 4 divisors (see below), whose sum is σ = 5886432. Its totient is φ = 5777212.

The previous prime is 5831801. The next prime is 5831831. The reversal of 5831821 is 1281385.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5831821 - 2¹¹ = 5829773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5831821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5831801) 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 3 ways as a sum of consecutive naturals, for example, 27145 + ... + 27358.

It is an arithmetic number, because the mean of its divisors is an integer number (1471608).

Almost surely, 2^5831821 is an apocalyptic number.

It is an amenable number.

5831821 is a deficient number, since it is larger than the sum of its proper divisors (54611).

5831821 is a wasteful number, since it uses less digits than its factorization.

5831821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54610.

The product of its digits is 1920, while the sum is 28.

The square root of 5831821 is about 2414.9163546591. The cubic root of 5831821 is about 179.9981584174.

The spelling of 5831821 in words is "five million, eight hundred thirty-one thousand, eight hundred twenty-one".