5209321 has 8 divisors (see below), whose sum is σ = 5741120. Its totient is φ = 4696272.

The previous prime is 5209319. The next prime is 5209381. The reversal of 5209321 is 1239025.

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 5209321 - 2¹ = 5209319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5209292 and 5209301.

It is not an unprimeable number, because it can be changed into a prime (5209301) 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, 4101 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (717640).

Almost surely, 2^5209321 is an apocalyptic number.

It is an amenable number.

5209321 is a deficient number, since it is larger than the sum of its proper divisors (531799).

5209321 is a wasteful number, since it uses less digits than its factorization.

5209321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9375.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 5209321 is about 2282.3936996057. The cubic root of 5209321 is about 173.3512748522.

The spelling of 5209321 in words is "five million, two hundred nine thousand, three hundred twenty-one".