3709705 has 4 divisors (see below), whose sum is σ = 4451652. Its totient is φ = 2967760.

The previous prime is 3709703. The next prime is 3709711. The reversal of 3709705 is 5079073.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 3024121 = 828^2 + 1739^2 .

It is not a de Polignac number, because 3709705 - 2¹ = 3709703 is a prime.

It is a super-2 number, since 2×3709705² = 27523822374050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3709703) 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, 370966 + ... + 370975.

It is an arithmetic number, because the mean of its divisors is an integer number (1112913).

Almost surely, 2^3709705 is an apocalyptic number.

It is an amenable number.

3709705 is a deficient number, since it is larger than the sum of its proper divisors (741947).

3709705 is an equidigital number, since it uses as much as digits as its factorization.

3709705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741946.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 3709705 is about 1926.0594487191. The cubic root of 3709705 is about 154.8031493416.

The spelling of 3709705 in words is "three million, seven hundred nine thousand, seven hundred five".