2985806 has 8 divisors (see below), whose sum is σ = 4486320. Its totient is φ = 1490368.

The previous prime is 2985781. The next prime is 2985809. The reversal of 2985806 is 6085892.

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

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2985806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2985809) 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 3 ways as a sum of consecutive naturals, for example, 1055 + ... + 2661.

It is an arithmetic number, because the mean of its divisors is an integer number (560790).

2^2985806 is an apocalyptic number.

2985806 is a deficient number, since it is larger than the sum of its proper divisors (1500514).

2985806 is a wasteful number, since it uses less digits than its factorization.

2985806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2985806 is about 1727.9484946028. The cubic root of 2985806 is about 143.9971385748.

The spelling of 2985806 in words is "two million, nine hundred eighty-five thousand, eight hundred six".