3916685 has 4 divisors (see below), whose sum is σ = 4700028. Its totient is φ = 3133344.

The previous prime is 3916673. The next prime is 3916691. The reversal of 3916685 is 5866193.

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 996004 + 2920681 = 998^2 + 1709^2 .

It is a cyclic number.

It is not a de Polignac number, because 3916685 - 2⁶ = 3916621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 391664 + ... + 391673.

It is an arithmetic number, because the mean of its divisors is an integer number (1175007).

Almost surely, 2^3916685 is an apocalyptic number.

It is an amenable number.

3916685 is a deficient number, since it is larger than the sum of its proper divisors (783343).

3916685 is an equidigital number, since it uses as much as digits as its factorization.

3916685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783342.

The product of its digits is 38880, while the sum is 38.

The square root of 3916685 is about 1979.0616463365. The cubic root of 3916685 is about 157.6302441591.

The spelling of 3916685 in words is "three million, nine hundred sixteen thousand, six hundred eighty-five".