3332821 has 4 divisors (see below), whose sum is σ = 3340000. Its totient is φ = 3325644.

The previous prime is 3332807. The next prime is 3332827. The reversal of 3332821 is 1282333.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1282333 = 13 ⋅98641.

It is a cyclic number.

It is not a de Polignac number, because 3332821 - 2¹¹ = 3330773 is a prime.

It is a super-2 number, since 2×3332821² = 22215391636082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3332792 and 3332801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3332827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2841 + ... + 3838.

It is an arithmetic number, because the mean of its divisors is an integer number (835000).

Almost surely, 2^3332821 is an apocalyptic number.

It is an amenable number.

3332821 is a deficient number, since it is larger than the sum of its proper divisors (7179).

3332821 is an equidigital number, since it uses as much as digits as its factorization.

3332821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7178.

The product of its digits is 864, while the sum is 22.

The square root of 3332821 is about 1825.6015446970. The cubic root of 3332821 is about 149.3725045830.

The spelling of 3332821 in words is "three million, three hundred thirty-two thousand, eight hundred twenty-one".