4027806 has 60 divisors (see below), whose sum is σ = 9635472. Its totient is φ = 1256904.

The previous prime is 4027789. The next prime is 4027811. The reversal of 4027806 is 6087204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4027806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 85675 + ... + 85721.

Almost surely, 2^4027806 is an apocalyptic number.

4027806 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4027806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4817736).

4027806 is an abundant number, since it is smaller than the sum of its proper divisors (5607666).

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

4027806 is a wasteful number, since it uses less digits than its factorization.

4027806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4027806 is about 2006.9394609704. The cubic root of 4027806 is about 159.1070834366.

The spelling of 4027806 in words is "four million, twenty-seven thousand, eight hundred six".