3939123 has 4 divisors (see below), whose sum is σ = 5252168. Its totient is φ = 2626080.

The previous prime is 3939071. The next prime is 3939149. The reversal of 3939123 is 3219393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3219393 = 3 ⋅1073131.

It is not a de Polignac number, because 3939123 - 2⁶ = 3939059 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656518 + ... + 656523.

It is an arithmetic number, because the mean of its divisors is an integer number (1313042).

Almost surely, 2^3939123 is an apocalyptic number.

3939123 is a deficient number, since it is larger than the sum of its proper divisors (1313045).

3939123 is a wasteful number, since it uses less digits than its factorization.

3939123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313044.

The product of its digits is 4374, while the sum is 30.

The square root of 3939123 is about 1984.7223987248. The cubic root of 3939123 is about 157.9306831550.

The spelling of 3939123 in words is "three million, nine hundred thirty-nine thousand, one hundred twenty-three".