3081806 has 48 divisors (see below), whose sum is σ = 6032880. Its totient is φ = 1169280.

The previous prime is 3081797. The next prime is 3081809. The reversal of 3081806 is 6081803.

3081806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081809) 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 23 ways as a sum of consecutive naturals, for example, 52205 + ... + 52263.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

Almost surely, 2^3081806 is an apocalyptic number.

3081806 is a deficient number, since it is larger than the sum of its proper divisors (2951074).

3081806 is a wasteful number, since it uses less digits than its factorization.

3081806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 3081806 is about 1755.5073340775. The cubic root of 3081806 is about 145.5241592205.

The spelling of 3081806 in words is "three million, eighty-one thousand, eight hundred six".