3685818 has 16 divisors (see below), whose sum is σ = 7551936. Its totient is φ = 1198560.

The previous prime is 3685811. The next prime is 3685837. The reversal of 3685818 is 8185863.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3685811) 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, 7246 + ... + 7737.

It is an arithmetic number, because the mean of its divisors is an integer number (471996).

Almost surely, 2^3685818 is an apocalyptic number.

3685818 is an abundant number, since it is smaller than the sum of its proper divisors (3866118).

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

3685818 is a wasteful number, since it uses less digits than its factorization.

3685818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15029.

The product of its digits is 46080, while the sum is 39.

The square root of 3685818 is about 1919.8484315174. The cubic root of 3685818 is about 154.4701715543.

The spelling of 3685818 in words is "three million, six hundred eighty-five thousand, eight hundred eighteen".