3806550 has 72 divisors (see below), whose sum is σ = 11171160. Its totient is φ = 921600.

The previous prime is 3806549. The next prime is 3806557. The reversal of 3806550 is 556083.

3806550 is a `hidden beast` number, since 3 + 8 + 0 + 655 + 0 = 666.

3806550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4566 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (155155).

Almost surely, 2^3806550 is an apocalyptic number.

3806550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3806550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5585580).

3806550 is an abundant number, since it is smaller than the sum of its proper divisors (7364610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3806550 is a wasteful number, since it uses less digits than its factorization.

3806550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 3806550 is about 1951.0381851722. The cubic root of 3806550 is about 156.1386833806.

It can be divided in two parts, 3806 and 550, that added together give a square (4356 = 66²).

The spelling of 3806550 in words is "three million, eight hundred six thousand, five hundred fifty".