3829981 has 8 divisors (see below), whose sum is σ = 4165560. Its totient is φ = 3506688.

The previous prime is 3829979. The next prime is 3829993. The reversal of 3829981 is 1899283.

It can be written as a sum of positive squares in 4 ways, for example, as 1301881 + 2528100 = 1141^2 + 1590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3829981 - 2¹ = 3829979 is a prime.

It is a super-2 number, since 2×3829981² = 29337508920722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3829901) 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 7 ways as a sum of consecutive naturals, for example, 2416 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (520695).

Almost surely, 2^3829981 is an apocalyptic number.

It is an amenable number.

3829981 is a deficient number, since it is larger than the sum of its proper divisors (335579).

3829981 is a wasteful number, since it uses less digits than its factorization.

3829981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143.

The product of its digits is 31104, while the sum is 40.

The square root of 3829981 is about 1957.0337247988. The cubic root of 3829981 is about 156.4583958519.

The spelling of 3829981 in words is "three million, eight hundred twenty-nine thousand, nine hundred eighty-one".