3821229 has 16 divisors (see below), whose sum is σ = 5691840. Its totient is φ = 2533680.

The previous prime is 3821221. The next prime is 3821231. The reversal of 3821229 is 9221283.

It is a happy number.

It is not a de Polignac number, because 3821229 - 2³ = 3821221 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 (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 15 ways as a sum of consecutive naturals, for example, 8059 + ... + 8519.

It is an arithmetic number, because the mean of its divisors is an integer number (355740).

Almost surely, 2^3821229 is an apocalyptic number.

It is an amenable number.

3821229 is a deficient number, since it is larger than the sum of its proper divisors (1870611).

3821229 is a wasteful number, since it uses less digits than its factorization.

3821229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 771 counting only the distinct ones).

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

The square root of 3821229 is about 1954.7964088365. The cubic root of 3821229 is about 156.3391290954.

The spelling of 3821229 in words is "three million, eight hundred twenty-one thousand, two hundred twenty-nine".