3923847 has 6 divisors (see below), whose sum is σ = 5667792. Its totient is φ = 2615892.

The previous prime is 3923839. The next prime is 3923863. The reversal of 3923847 is 7483293.

It is not a de Polignac number, because 3923847 - 2³ = 3923839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3923827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217983 + ... + 218000.

It is an arithmetic number, because the mean of its divisors is an integer number (944632).

Almost surely, 2^3923847 is an apocalyptic number.

3923847 is a deficient number, since it is larger than the sum of its proper divisors (1743945).

3923847 is a wasteful number, since it uses less digits than its factorization.

3923847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435989 (or 435986 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3923847 is about 1980.8702632934. The cubic root of 3923847 is about 157.7262658697.

The spelling of 3923847 in words is "three million, nine hundred twenty-three thousand, eight hundred forty-seven".