5809247821 has 8 divisors (see below), whose sum is σ = 6457923584. Its totient is φ = 5189402160.

The previous prime is 5809247779. The next prime is 5809247827. The reversal of 5809247821 is 1287429085.

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 5809247821 - 2⁷ = 5809247693 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 (5809247827) 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, 7207101 + ... + 7207906.

It is an arithmetic number, because the mean of its divisors is an integer number (807240448).

Almost surely, 2^5809247821 is an apocalyptic number.

It is an amenable number.

5809247821 is a deficient number, since it is larger than the sum of its proper divisors (648675763).

5809247821 is a wasteful number, since it uses less digits than its factorization.

5809247821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415051.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 5809247821 is about 76218.4217955213. The cubic root of 5809247821 is about 1797.6561902549.

The spelling of 5809247821 in words is "five billion, eight hundred nine million, two hundred forty-seven thousand, eight hundred twenty-one".