3828681 has 8 divisors (see below), whose sum is σ = 5672160. Its totient is φ = 2552436.

The previous prime is 3828673. The next prime is 3828683. The reversal of 3828681 is 1868283.

It is not a de Polignac number, because 3828681 - 2³ = 3828673 is a prime.

It is a super-2 number, since 2×3828681² = 29317596399522, which contains 22 as substring.

3828681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3828683) 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, 70875 + ... + 70928.

It is an arithmetic number, because the mean of its divisors is an integer number (709020).

Almost surely, 2^3828681 is an apocalyptic number.

It is an amenable number.

3828681 is a deficient number, since it is larger than the sum of its proper divisors (1843479).

3828681 is a wasteful number, since it uses less digits than its factorization.

3828681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141812 (or 141806 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 3828681 is about 1956.7015613016. The cubic root of 3828681 is about 156.4406917666.

The spelling of 3828681 in words is "three million, eight hundred twenty-eight thousand, six hundred eighty-one".