3020855 has 4 divisors (see below), whose sum is σ = 3625032. Its totient is φ = 2416680.

The previous prime is 3020851. The next prime is 3020869. The reversal of 3020855 is 5580203.

3020855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5580203 = 1823 ⋅3061.

It is not a de Polignac number, because 3020855 - 2² = 3020851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3020855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020851) 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 3 ways as a sum of consecutive naturals, for example, 302081 + ... + 302090.

It is an arithmetic number, because the mean of its divisors is an integer number (906258).

Almost surely, 2^3020855 is an apocalyptic number.

3020855 is a deficient number, since it is larger than the sum of its proper divisors (604177).

3020855 is an equidigital number, since it uses as much as digits as its factorization.

3020855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604176.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 3020855 is about 1738.0607008963. The cubic root of 3020855 is about 144.5583868646.

The spelling of 3020855 in words is "three million, twenty thousand, eight hundred fifty-five".