3864909 has 8 divisors (see below), whose sum is σ = 5292640. Its totient is φ = 2506896.

The previous prime is 3864901. The next prime is 3864929. The reversal of 3864909 is 9094683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3864909 - 2³ = 3864901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3864901) 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, 17299 + ... + 17520.

It is an arithmetic number, because the mean of its divisors is an integer number (661580).

Almost surely, 2^3864909 is an apocalyptic number.

It is an amenable number.

3864909 is a deficient number, since it is larger than the sum of its proper divisors (1427731).

3864909 is a wasteful number, since it uses less digits than its factorization.

3864909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34859.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 3864909 is about 1965.9371810920. The cubic root of 3864909 is about 156.9325714208.

The spelling of 3864909 in words is "three million, eight hundred sixty-four thousand, nine hundred nine".