3224081921 has 2 divisors, whose sum is σ = 3224081922. Its totient is φ = 3224081920.

The previous prime is 3224081869. The next prime is 3224081947. The reversal of 3224081921 is 1291804223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2797246321 + 426835600 = 52889^2 + 20660^2 .

It is a cyclic number.

It is not a de Polignac number, because 3224081921 - 2¹⁸ = 3223819777 is a prime.

It is not a weakly prime, because it can be changed into another prime (3224084921) 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 as a sum of consecutive naturals, namely, 1612040960 + 1612040961.

It is an arithmetic number, because the mean of its divisors is an integer number (1612040961).

Almost surely, 2^3224081921 is an apocalyptic number.

It is an amenable number.

3224081921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3224081921 is an equidigital number, since it uses as much as digits as its factorization.

3224081921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 3224081921 is about 56780.9996477695. Note that the first 3 decimals coincide. The cubic root of 3224081921 is about 1477.2999714510.

The spelling of 3224081921 in words is "three billion, two hundred twenty-four million, eighty-one thousand, nine hundred twenty-one".