3066021 has 24 divisors (see below), whose sum is σ = 5189184. Its totient is φ = 1707840.

The previous prime is 3066017. The next prime is 3066067. The reversal of 3066021 is 1206603.

3066021 = T₄₆₃ + T₄₆₄ + ... + T₄₈₉.

It is a happy number.

3066021 is a `hidden beast` number, since 3 + 0 + 660 + 2 + 1 = 666.

3066021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3066021 - 2² = 3066017 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3065985 and 3066003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3066071) 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, 1990 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (216216).

Almost surely, 2^3066021 is an apocalyptic number.

It is an amenable number.

3066021 is a deficient number, since it is larger than the sum of its proper divisors (2123163).

3066021 is a wasteful number, since it uses less digits than its factorization.

3066021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3066021 is about 1751.0057110130. The cubic root of 3066021 is about 145.2752757236.

It can be divided in two parts, 306602 and 1, that added together give a palindrome (306603).

The spelling of 3066021 in words is "three million, sixty-six thousand, twenty-one".