3221047 has 4 divisors (see below), whose sum is σ = 3244360. Its totient is φ = 3197736.

The previous prime is 3221033. The next prime is 3221063. The reversal of 3221047 is 7401223.

3221047 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: 7401223 = 1627 ⋅4549.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221017) 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, 11448 + ... + 11725.

It is an arithmetic number, because the mean of its divisors is an integer number (811090).

Almost surely, 2^3221047 is an apocalyptic number.

3221047 is a deficient number, since it is larger than the sum of its proper divisors (23313).

3221047 is a wasteful number, since it uses less digits than its factorization.

3221047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23312.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 3221047 is about 1794.7275559260. The cubic root of 3221047 is about 147.6836284282.

It can be divided in two parts, 322 and 1047, that added together give a square (1369 = 37²).

The spelling of 3221047 in words is "three million, two hundred twenty-one thousand, forty-seven".