3221878841 has 4 divisors (see below), whose sum is σ = 3233344884. Its totient is φ = 3210412800.

The previous prime is 3221878823. The next prime is 3221878853. The reversal of 3221878841 is 1488781223.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2725257616 + 496621225 = 52204^2 + 22285^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221878841 - 2¹⁰ = 3221877817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221878792 and 3221878801.

It is not an unprimeable number, because it can be changed into a prime (3221874841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5732600 + ... + 5733161.

It is an arithmetic number, because the mean of its divisors is an integer number (808336221).

Almost surely, 2^3221878841 is an apocalyptic number.

It is an amenable number.

3221878841 is a deficient number, since it is larger than the sum of its proper divisors (11466043).

3221878841 is a wasteful number, since it uses less digits than its factorization.

3221878841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11466042.

The product of its digits is 172032, while the sum is 44.

The square root of 3221878841 is about 56761.5965332195. The cubic root of 3221878841 is about 1476.9634051875.

The spelling of 3221878841 in words is "three billion, two hundred twenty-one million, eight hundred seventy-eight thousand, eight hundred forty-one".