3718685 has 8 divisors (see below), whose sum is σ = 4583256. Its totient is φ = 2894400.

The previous prime is 3718681. The next prime is 3718739. The reversal of 3718685 is 5868173.

It can be written as a sum of positive squares in 4 ways, for example, as 749956 + 2968729 = 866^2 + 1723^2 .

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

It is not a de Polignac number, because 3718685 - 2² = 3718681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3718681) 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, 9866 + ... + 10235.

It is an arithmetic number, because the mean of its divisors is an integer number (572907).

Almost surely, 2^3718685 is an apocalyptic number.

It is an amenable number.

3718685 is a deficient number, since it is larger than the sum of its proper divisors (864571).

3718685 is a wasteful number, since it uses less digits than its factorization.

3718685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20143.

The product of its digits is 40320, while the sum is 38.

The square root of 3718685 is about 1928.3892241972. The cubic root of 3718685 is about 154.9279581965.

The spelling of 3718685 in words is "three million, seven hundred eighteen thousand, six hundred eighty-five".