2806206 has 16 divisors (see below), whose sum is σ = 6044304. Its totient is φ = 863424.

The previous prime is 2806201. The next prime is 2806211. The reversal of 2806206 is 6026082.

It is an interprime number because it is at equal distance from previous prime (2806201) and next prime (2806211).

It is a super-2 number, since 2×2806206² = 15749584228872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17911 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (377769).

2^2806206 is an apocalyptic number.

2806206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2806206 is an abundant number, since it is smaller than the sum of its proper divisors (3238098).

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

2806206 is a wasteful number, since it uses less digits than its factorization.

2806206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35995.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2806206 is about 1675.1734238580. The cubic root of 2806206 is about 141.0500300304.

The spelling of 2806206 in words is "two million, eight hundred six thousand, two hundred six".