3322821 has 8 divisors (see below), whose sum is σ = 4505760. Its totient is φ = 2177552.

The previous prime is 3322807. The next prime is 3322831. The reversal of 3322821 is 1282233.

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 3322821 - 2⁶ = 3322757 is a prime.

It is a super-2 number, since 2×3322821² = 22082278796082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3322831) 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, 9210 + ... + 9563.

It is an arithmetic number, because the mean of its divisors is an integer number (563220).

Almost surely, 2^3322821 is an apocalyptic number.

It is an amenable number.

3322821 is a deficient number, since it is larger than the sum of its proper divisors (1182939).

3322821 is a wasteful number, since it uses less digits than its factorization.

3322821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18835.

The product of its digits is 576, while the sum is 21.

The square root of 3322821 is about 1822.8606639017. The cubic root of 3322821 is about 149.2229594483. Note that the first 3 decimals are identical.

The spelling of 3322821 in words is "three million, three hundred twenty-two thousand, eight hundred twenty-one".