3856923 has 16 divisors (see below), whose sum is σ = 6530560. Its totient is φ = 2203848.

The previous prime is 3856921. The next prime is 3856949. The reversal of 3856923 is 3296583.

It is not a de Polignac number, because 3856923 - 2¹ = 3856921 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3856921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10015 + ... + 10392.

It is an arithmetic number, because the mean of its divisors is an integer number (408160).

Almost surely, 2^3856923 is an apocalyptic number.

3856923 is a deficient number, since it is larger than the sum of its proper divisors (2673637).

3856923 is a wasteful number, since it uses less digits than its factorization.

3856923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20423 (or 20417 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3856923 is about 1963.9050384374. The cubic root of 3856923 is about 156.8244077954.

The spelling of 3856923 in words is "three million, eight hundred fifty-six thousand, nine hundred twenty-three".