8330021 has 8 divisors (see below), whose sum is σ = 9605184. Its totient is φ = 7076160.

The previous prime is 8330009. The next prime is 8330027. The reversal of 8330021 is 1200338.

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

It is not a de Polignac number, because 8330021 - 2¹⁴ = 8313637 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 (8330027) 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, 4475 + ... + 6056.

It is an arithmetic number, because the mean of its divisors is an integer number (1200648).

Almost surely, 2^8330021 is an apocalyptic number.

It is an amenable number.

8330021 is a deficient number, since it is larger than the sum of its proper divisors (1275163).

8330021 is a wasteful number, since it uses less digits than its factorization.

8330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10651.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 8330021 is about 2886.1775759644. The cubic root of 8330021 is about 202.7132012521.

Adding to 8330021 its reverse (1200338), we get a palindrome (9530359).

The spelling of 8330021 in words is "eight million, three hundred thirty thousand, twenty-one".