3728220539 has 2 divisors, whose sum is σ = 3728220540. Its totient is φ = 3728220538.

The previous prime is 3728220523. The next prime is 3728220557. The reversal of 3728220539 is 9350228273.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3728220539 - 2⁴ = 3728220523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3728220496 and 3728220505.

It is not a weakly prime, because it can be changed into another prime (3728220589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864110269 + 1864110270.

It is an arithmetic number, because the mean of its divisors is an integer number (1864110270).

Almost surely, 2^3728220539 is an apocalyptic number.

3728220539 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728220539 is an equidigital number, since it uses as much as digits as its factorization.

3728220539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 3728220539 is about 61059.1560619699. The cubic root of 3728220539 is about 1550.6026846711.

The spelling of 3728220539 in words is "three billion, seven hundred twenty-eight million, two hundred twenty thousand, five hundred thirty-nine".