3924709 has 4 divisors (see below), whose sum is σ = 3933900. Its totient is φ = 3915520.

The previous prime is 3924689. The next prime is 3924719. The reversal of 3924709 is 9074293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9074293 = 1427 ⋅6359.

It can be written as a sum of positive squares in 2 ways, for example, as 1512900 + 2411809 = 1230^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 3924709 - 2⁵ = 3924677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3924719) 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, 3922 + ... + 4819.

It is an arithmetic number, because the mean of its divisors is an integer number (983475).

Almost surely, 2^3924709 is an apocalyptic number.

It is an amenable number.

3924709 is a deficient number, since it is larger than the sum of its proper divisors (9191).

3924709 is an equidigital number, since it uses as much as digits as its factorization.

3924709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 3924709 is about 1981.0878324799. The cubic root of 3924709 is about 157.7378149172.

The spelling of 3924709 in words is "three million, nine hundred twenty-four thousand, seven hundred nine".