3689818 has 16 divisors (see below), whose sum is σ = 6067584. Its totient is φ = 1668960.

The previous prime is 3689809. The next prime is 3689843. The reversal of 3689818 is 8189863.

It is a happy number.

3689818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3689818² = 27229513746248, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7846 + ... + 8302.

It is an arithmetic number, because the mean of its divisors is an integer number (379224).

Almost surely, 2^3689818 is an apocalyptic number.

3689818 is a deficient number, since it is larger than the sum of its proper divisors (2377766).

3689818 is a wasteful number, since it uses less digits than its factorization.

3689818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its digits is 82944, while the sum is 43.

The square root of 3689818 is about 1920.8898979379. The cubic root of 3689818 is about 154.5260304622.

The spelling of 3689818 in words is "three million, six hundred eighty-nine thousand, eight hundred eighteen".