3709889 has 4 divisors (see below), whose sum is σ = 3714180. Its totient is φ = 3705600.

The previous prime is 3709873. The next prime is 3709907. The reversal of 3709889 is 9889073.

3709889 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1399489 + 2310400 = 1183^2 + 1520^2 .

It is a cyclic number.

It is not a de Polignac number, because 3709889 - 2⁴ = 3709873 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 (3709819) 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, 344 + ... + 2745.

It is an arithmetic number, because the mean of its divisors is an integer number (928545).

Almost surely, 2^3709889 is an apocalyptic number.

It is an amenable number.

3709889 is a deficient number, since it is larger than the sum of its proper divisors (4291).

3709889 is a wasteful number, since it uses less digits than its factorization.

3709889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 3709889 is about 1926.1072140460. The cubic root of 3709889 is about 154.8057086923.

The spelling of 3709889 in words is "three million, seven hundred nine thousand, eight hundred eighty-nine".