3685388 has 18 divisors (see below), whose sum is σ = 7502796. Its totient is φ = 1579368.

The previous prime is 3685387. The next prime is 3685403. The reversal of 3685388 is 8835863.

3685388 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3685387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9206 + ... + 9597.

It is an arithmetic number, because the mean of its divisors is an integer number (416822).

Almost surely, 2^3685388 is an apocalyptic number.

It is an amenable number.

3685388 is an abundant number, since it is smaller than the sum of its proper divisors (3817408).

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

3685388 is a wasteful number, since it uses less digits than its factorization.

3685388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18821 (or 18812 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 3685388 is about 1919.7364402438. The cubic root of 3685388 is about 154.4641643164.

The spelling of 3685388 in words is "three million, six hundred eighty-five thousand, three hundred eighty-eight".