3684947 has 12 divisors (see below), whose sum is σ = 4322880. Its totient is φ = 3131856.

The previous prime is 3684929. The next prime is 3684953. The reversal of 3684947 is 7494863.

3684947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3684947 - 2¹⁴ = 3668563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3684977) 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 in 11 ways as a sum of consecutive naturals, for example, 7454 + ... + 7932.

It is an arithmetic number, because the mean of its divisors is an integer number (360240).

Almost surely, 2^3684947 is an apocalyptic number.

3684947 is a deficient number, since it is larger than the sum of its proper divisors (637933).

3684947 is a wasteful number, since it uses less digits than its factorization.

3684947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 643 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 3684947 is about 1919.6215772907. The cubic root of 3684947 is about 154.4580029196.

The spelling of 3684947 in words is "three million, six hundred eighty-four thousand, nine hundred forty-seven".