3821629 has 4 divisors (see below), whose sum is σ = 4367584. Its totient is φ = 3275676.

The previous prime is 3821627. The next prime is 3821633. The reversal of 3821629 is 9261283.

3821629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 9261283 = 151 ⋅61333.

It is a cyclic number.

It is not a de Polignac number, because 3821629 - 2¹ = 3821627 is a prime.

It is a Duffinian number.

3821629 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3821629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272967 + ... + 272980.

It is an arithmetic number, because the mean of its divisors is an integer number (1091896).

Almost surely, 2^3821629 is an apocalyptic number.

It is an amenable number.

3821629 is a deficient number, since it is larger than the sum of its proper divisors (545955).

3821629 is an equidigital number, since it uses as much as digits as its factorization.

3821629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545954.

The product of its digits is 5184, while the sum is 31.

The square root of 3821629 is about 1954.8987186041. The cubic root of 3821629 is about 156.3445840132.

The spelling of 3821629 in words is "three million, eight hundred twenty-one thousand, six hundred twenty-nine".