3821223 has 32 divisors (see below), whose sum is σ = 6269440. Its totient is φ = 2021760.

The previous prime is 3821221. The next prime is 3821231. The reversal of 3821223 is 3221283.

It is not a de Polignac number, because 3821223 - 2¹ = 3821221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a D-number.

It is a Duffinian number.

3821223 is an undulating number in base 13.

3821223 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3821223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821221) 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 31 ways as a sum of consecutive naturals, for example, 24261 + ... + 24417.

It is an arithmetic number, because the mean of its divisors is an integer number (195920).

Almost surely, 2^3821223 is an apocalyptic number.

3821223 is a deficient number, since it is larger than the sum of its proper divisors (2448217).

3821223 is a wasteful number, since it uses less digits than its factorization.

3821223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

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

The square root of 3821223 is about 1954.7948741492. The cubic root of 3821223 is about 156.3390472688.

The spelling of 3821223 in words is "three million, eight hundred twenty-one thousand, two hundred twenty-three".