3221879 has 4 divisors (see below), whose sum is σ = 3230760. Its totient is φ = 3213000.

The previous prime is 3221819. The next prime is 3221899. The reversal of 3221879 is 9781223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221879 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3872 + ... + 4629.

It is an arithmetic number, because the mean of its divisors is an integer number (807690).

Almost surely, 2^3221879 is an apocalyptic number.

3221879 is a deficient number, since it is larger than the sum of its proper divisors (8881).

3221879 is an equidigital number, since it uses as much as digits as its factorization.

3221879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880.

The product of its digits is 6048, while the sum is 32.

The square root of 3221879 is about 1794.9593310156. The cubic root of 3221879 is about 147.6963429484.

The spelling of 3221879 in words is "three million, two hundred twenty-one thousand, eight hundred seventy-nine".