8299821 has 8 divisors (see below), whose sum is σ = 11103040. Its totient is φ = 5514912.

The previous prime is 8299793. The next prime is 8299891. The reversal of 8299821 is 1289928.

8299821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8299821 - 2⁹ = 8299309 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 8299821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8299891) 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, 3481 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (1387880).

Almost surely, 2^8299821 is an apocalyptic number.

It is an amenable number.

8299821 is a deficient number, since it is larger than the sum of its proper divisors (2803219).

8299821 is a wasteful number, since it uses less digits than its factorization.

8299821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155.

The product of its digits is 20736, while the sum is 39.

The square root of 8299821 is about 2880.9409921066. The cubic root of 8299821 is about 202.4679296873.

The spelling of 8299821 in words is "eight million, two hundred ninety-nine thousand, eight hundred twenty-one".