3684406 has 16 divisors (see below), whose sum is σ = 6064128. Its totient is φ = 1665000.

The previous prime is 3684391. The next prime is 3684407. The reversal of 3684406 is 6044863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3684407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4531 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (379008).

Almost surely, 2^3684406 is an apocalyptic number.

3684406 is a deficient number, since it is larger than the sum of its proper divisors (2379722).

3684406 is a wasteful number, since it uses less digits than its factorization.

3684406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 3684406 is about 1919.4806589283. The cubic root of 3684406 is about 154.4504437092.

It can be divided in two parts, 368 and 4406, that added together give a palindrome (4774).

The spelling of 3684406 in words is "three million, six hundred eighty-four thousand, four hundred six".