3221679 has 8 divisors (see below), whose sum is σ = 4482432. Its totient is φ = 2054360.

The previous prime is 3221677. The next prime is 3221707. The reversal of 3221679 is 9761223.

3221679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3221679 - 2¹ = 3221677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221677) 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 7 ways as a sum of consecutive naturals, for example, 23277 + ... + 23414.

It is an arithmetic number, because the mean of its divisors is an integer number (560304).

Almost surely, 2^3221679 is an apocalyptic number.

3221679 is a deficient number, since it is larger than the sum of its proper divisors (1260753).

3221679 is a wasteful number, since it uses less digits than its factorization.

3221679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46717.

The product of its digits is 4536, while the sum is 30.

The square root of 3221679 is about 1794.9036185823. The cubic root of 3221679 is about 147.6932867732.

The spelling of 3221679 in words is "three million, two hundred twenty-one thousand, six hundred seventy-nine".