3684388 has 12 divisors (see below), whose sum is σ = 6466572. Its totient is φ = 1836800.

The previous prime is 3684371. The next prime is 3684389. The reversal of 3684388 is 8834863.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2965284 + 719104 = 1722^2 + 848^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3684388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3684389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456 + ... + 2752.

It is an arithmetic number, because the mean of its divisors is an integer number (538881).

Almost surely, 2^3684388 is an apocalyptic number.

It is an amenable number.

3684388 is a deficient number, since it is larger than the sum of its proper divisors (2782184).

3684388 is a wasteful number, since it uses less digits than its factorization.

3684388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702 (or 2700 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 3684388 is about 1919.4759701544. The cubic root of 3684388 is about 154.4501921885.

The spelling of 3684388 in words is "three million, six hundred eighty-four thousand, three hundred eighty-eight".