3705885 has 32 divisors (see below), whose sum is σ = 6679680. Its totient is φ = 1949184.

The previous prime is 3705853. The next prime is 3705887. The reversal of 3705885 is 5885073.

It is a happy number.

3705885 is a `hidden beast` number, since 3 + 70 + 588 + 5 = 666.

It is not a de Polignac number, because 3705885 - 2⁵ = 3705853 is a prime.

It is a Curzon number.

3705885 is a lucky number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3705887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12954 + ... + 13236.

It is an arithmetic number, because the mean of its divisors is an integer number (208740).

Almost surely, 2^3705885 is an apocalyptic number.

It is an amenable number.

3705885 is a deficient number, since it is larger than the sum of its proper divisors (2973795).

3705885 is a wasteful number, since it uses less digits than its factorization.

3705885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 3705885 is about 1925.0675312830. The cubic root of 3705885 is about 154.7499958677.

The spelling of 3705885 in words is "three million, seven hundred five thousand, eight hundred eighty-five".