3886805 has 8 divisors (see below), whose sum is σ = 5023032. Its totient is φ = 2870208.

The previous prime is 3886801. The next prime is 3886819. The reversal of 3886805 is 5086883.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 192721 + 3694084 = 439^2 + 1922^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3886805 - 2² = 3886801 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 (3886801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29834 + ... + 29963.

It is an arithmetic number, because the mean of its divisors is an integer number (627879).

Almost surely, 2^3886805 is an apocalyptic number.

It is an amenable number.

3886805 is a deficient number, since it is larger than the sum of its proper divisors (1136227).

3886805 is a wasteful number, since it uses less digits than its factorization.

3886805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59815.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 3886805 is about 1971.4981612976. The cubic root of 3886805 is about 157.2283719916.

The spelling of 3886805 in words is "three million, eight hundred eighty-six thousand, eight hundred five".