3280014721 has 2 divisors, whose sum is σ = 3280014722. Its totient is φ = 3280014720.

The previous prime is 3280014691. The next prime is 3280014781. The reversal of 3280014721 is 1274100823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1992640321 + 1287374400 = 44639^2 + 35880^2 .

It is an emirp because it is prime and its reverse (1274100823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3280014721 - 2²⁷ = 3145796993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3280014721.

It is not a weakly prime, because it can be changed into another prime (3280014781) 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, 1640007360 + 1640007361.

It is an arithmetic number, because the mean of its divisors is an integer number (1640007361).

Almost surely, 2^3280014721 is an apocalyptic number.

It is an amenable number.

3280014721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3280014721 is an equidigital number, since it uses as much as digits as its factorization.

3280014721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 3280014721 is about 57271.4127728660. The cubic root of 3280014721 is about 1485.7939910848.

The spelling of 3280014721 in words is "three billion, two hundred eighty million, fourteen thousand, seven hundred twenty-one".