3939717 has 4 divisors (see below), whose sum is σ = 5252960. Its totient is φ = 2626476.

The previous prime is 3939713. The next prime is 3939721. The reversal of 3939717 is 7179393.

3939717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3939713) and next prime (3939721).

It is not a de Polignac number, because 3939717 - 2² = 3939713 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656617 + ... + 656622.

It is an arithmetic number, because the mean of its divisors is an integer number (1313240).

Almost surely, 2^3939717 is an apocalyptic number.

It is an amenable number.

3939717 is a deficient number, since it is larger than the sum of its proper divisors (1313243).

3939717 is a wasteful number, since it uses less digits than its factorization.

3939717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313242.

The product of its digits is 35721, while the sum is 39.

The square root of 3939717 is about 1984.8720361776. The cubic root of 3939717 is about 157.9386211411.

It can be divided in two parts, 3939 and 717, that added together give a triangular number (4656 = T₉₆).

The spelling of 3939717 in words is "three million, nine hundred thirty-nine thousand, seven hundred seventeen".