8321099 has 4 divisors (see below), whose sum is σ = 8342880. Its totient is φ = 8299320.

The previous prime is 8321081. The next prime is 8321111. The reversal of 8321099 is 9901238.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8321099 - 2¹⁶ = 8255563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8321029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10307 + ... + 11084.

It is an arithmetic number, because the mean of its divisors is an integer number (2085720).

Almost surely, 2^8321099 is an apocalyptic number.

8321099 is a deficient number, since it is larger than the sum of its proper divisors (21781).

8321099 is a wasteful number, since it uses less digits than its factorization.

8321099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 8321099 is about 2884.6315189292. The cubic root of 8321099 is about 202.6408023439.

The spelling of 8321099 in words is "eight million, three hundred twenty-one thousand, ninety-nine".