3709 has 2 divisors, whose sum is σ = 3710.
Its totient is φ = 3708.
The previous prime is 3701. The next prime is 3719. The reversal of 3709 is 9073.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2809 + 900 = 53^2 + 30^2
It is a cyclic number.
It is not a de Polignac number, because 3709 - 23 = 3701 is a prime.
It is a Chen prime.
3709 is a lucky number.
It is a plaindrome in base 14.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3701) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1854 + 1855.
It is an arithmetic number, because the mean of its divisors is an integer number (1855).
23709 is an apocalyptic number.
It is an amenable number.
3709 is a deficient number, since it is larger than the sum of its proper divisors (1).
3709 is an equidigital number, since it uses as much as digits as its factorization.
3709 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 189, while the sum is 19.
The square root of 3709 is about 60.9015599143.
The cubic root of 3709 is about 15.4793342350.
The spelling of 3709 in words is "three thousand, seven hundred nine".