3705785 has 8 divisors (see below), whose sum is σ = 4555656. Its totient is φ = 2892160.

The previous prime is 3705773. The next prime is 3705799. The reversal of 3705785 is 5875073.

It can be written as a sum of positive squares in 4 ways, for example, as 436921 + 3268864 = 661^2 + 1808^2 .

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

It is not a de Polignac number, because 3705785 - 2⁴ = 3705769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8834 + ... + 9243.

It is an arithmetic number, because the mean of its divisors is an integer number (569457).

Almost surely, 2^3705785 is an apocalyptic number.

It is an amenable number.

3705785 is a deficient number, since it is larger than the sum of its proper divisors (849871).

3705785 is a wasteful number, since it uses less digits than its factorization.

3705785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18123.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 3705785 is about 1925.0415579930. The cubic root of 3705785 is about 154.7486039250.

The spelling of 3705785 in words is "three million, seven hundred five thousand, seven hundred eighty-five".