3821872 has 20 divisors (see below), whose sum is σ = 7841016. Its totient is φ = 1798400.

The previous prime is 3821863. The next prime is 3821893. The reversal of 3821872 is 2781283.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6754 + ... + 7297.

Almost surely, 2^3821872 is an apocalyptic number.

It is an amenable number.

3821872 is an abundant number, since it is smaller than the sum of its proper divisors (4019144).

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

3821872 is a wasteful number, since it uses less digits than its factorization.

3821872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076 (or 14070 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 3821872 is about 1954.9608691736. The cubic root of 3821872 is about 156.3478976899.

The spelling of 3821872 in words is "three million, eight hundred twenty-one thousand, eight hundred seventy-two".