3864609 has 12 divisors (see below), whose sum is σ = 6379776. Its totient is φ = 2208312.

The previous prime is 3864607. The next prime is 3864629. The reversal of 3864609 is 9064683.

3864609 is a `hidden beast` number, since 3 + 8 + 646 + 0 + 9 = 666.

3864609 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 3864609 - 2¹ = 3864607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3864607) 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, 30609 + ... + 30734.

It is an arithmetic number, because the mean of its divisors is an integer number (531648).

Almost surely, 2^3864609 is an apocalyptic number.

It is an amenable number.

3864609 is a deficient number, since it is larger than the sum of its proper divisors (2515167).

3864609 is a wasteful number, since it uses less digits than its factorization.

3864609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61356 (or 61353 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3864609 is about 1965.8608801235. The cubic root of 3864609 is about 156.9285108690.

The spelling of 3864609 in words is "three million, eight hundred sixty-four thousand, six hundred nine".