3221829 has 32 divisors (see below), whose sum is σ = 5255040. Its totient is φ = 1938816.

The previous prime is 3221819. The next prime is 3221899. The reversal of 3221829 is 9281223.

It is a happy number.

It is not a de Polignac number, because 3221829 - 2⁸ = 3221573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23449 + ... + 23585.

It is an arithmetic number, because the mean of its divisors is an integer number (164220).

Almost surely, 2^3221829 is an apocalyptic number.

3221829 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3221829 is a deficient number, since it is larger than the sum of its proper divisors (2033211).

3221829 is a wasteful number, since it uses less digits than its factorization.

3221829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3221829 is about 1794.9454030694. The cubic root of 3221829 is about 147.6955789164.

The spelling of 3221829 in words is "three million, two hundred twenty-one thousand, eight hundred twenty-nine".