3709685 has 16 divisors (see below), whose sum is σ = 5152896. Its totient is φ = 2511168.

The previous prime is 3709681. The next prime is 3709687. The reversal of 3709685 is 5869073.

It is a cyclic number.

It is not a de Polignac number, because 3709685 - 2² = 3709681 is a prime.

It is an Ulam number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2267 + ... + 3543.

It is an arithmetic number, because the mean of its divisors is an integer number (322056).

Almost surely, 2^3709685 is an apocalyptic number.

3709685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3709685 is a deficient number, since it is larger than the sum of its proper divisors (1443211).

3709685 is a wasteful number, since it uses less digits than its factorization.

3709685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3709685 is about 1926.0542567643. The cubic root of 3709685 is about 154.8028711462.

The spelling of 3709685 in words is "three million, seven hundred nine thousand, six hundred eighty-five".