3684647 has 2 divisors, whose sum is σ = 3684648. Its totient is φ = 3684646.

The previous prime is 3684643. The next prime is 3684671. The reversal of 3684647 is 7464863.

It is a happy number.

3684647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3684647 - 2² = 3684643 is a prime.

It is a Chen prime.

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 3684647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3684641) by changing a digit.

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 as a sum of consecutive naturals, namely, 1842323 + 1842324.

It is an arithmetic number, because the mean of its divisors is an integer number (1842324).

Almost surely, 2^3684647 is an apocalyptic number.

3684647 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684647 is an equidigital number, since it uses as much as digits as its factorization.

3684647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 3684647 is about 1919.5434352991. The cubic root of 3684647 is about 154.4538112122.

The spelling of 3684647 in words is "three million, six hundred eighty-four thousand, six hundred forty-seven".