3821904 has 60 divisors (see below), whose sum is σ = 11103456. Its totient is φ = 1272672.

The previous prime is 3821903. The next prime is 3821911. The reversal of 3821904 is 4091283.

It is a super-3 number, since 3×3821904³ (a number of 21 digits) contains 333 as substring.

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 (3821903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3397 + ... + 4379.

Almost surely, 2^3821904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3821904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5551728).

3821904 is an abundant number, since it is smaller than the sum of its proper divisors (7281552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3821904 is an equidigital number, since it uses as much as digits as its factorization.

3821904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 988 counting only the distinct ones).

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

The square root of 3821904 is about 1954.9690534635. The cubic root of 3821904 is about 156.3483340483.

The spelling of 3821904 in words is "three million, eight hundred twenty-one thousand, nine hundred four".