3923844 has 24 divisors (see below), whose sum is σ = 9252768. Its totient is φ = 1294080.

The previous prime is 3923839. The next prime is 3923863. The reversal of 3923844 is 4483293.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (385532).

Almost surely, 2^3923844 is an apocalyptic number.

It is an amenable number.

3923844 is an abundant number, since it is smaller than the sum of its proper divisors (5328924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3923844 is a wasteful number, since it uses less digits than its factorization.

3923844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475 (or 3473 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 3923844 is about 1980.8695060503. The cubic root of 3923844 is about 157.7262256728.

The spelling of 3923844 in words is "three million, nine hundred twenty-three thousand, eight hundred forty-four".