3709689 has 8 divisors (see below), whose sum is σ = 5237280. Its totient is φ = 2327616.

The previous prime is 3709687. The next prime is 3709691. The reversal of 3709689 is 9869073.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3709687) and next prime (3709691).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3709689 - 2¹ = 3709687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3709689.

It is not an unprimeable number, because it can be changed into a prime (3709681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36319 + ... + 36420.

It is an arithmetic number, because the mean of its divisors is an integer number (654660).

Almost surely, 2^3709689 is an apocalyptic number.

It is an amenable number.

3709689 is a deficient number, since it is larger than the sum of its proper divisors (1527591).

3709689 is a wasteful number, since it uses less digits than its factorization.

3709689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72759.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3709689 is about 1926.0552951564. The cubic root of 3709689 is about 154.8029267853.

The spelling of 3709689 in words is "three million, seven hundred nine thousand, six hundred eighty-nine".