19728883 has 2 divisors, whose sum is σ = 19728884. Its totient is φ = 19728882.

The previous prime is 19728853. The next prime is 19728889. The reversal of 19728883 is 38882791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19728883 - 2¹⁷ = 19597811 is a prime.

It is not a weakly prime, because it can be changed into another prime (19728889) 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 as a sum of consecutive naturals, namely, 9864441 + 9864442.

It is an arithmetic number, because the mean of its divisors is an integer number (9864442).

Almost surely, 2^19728883 is an apocalyptic number.

19728883 is a deficient number, since it is larger than the sum of its proper divisors (1).

19728883 is an equidigital number, since it uses as much as digits as its factorization.

19728883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The square root of 19728883 is about 4441.7207251244. The cubic root of 19728883 is about 270.2096360014.

The spelling of 19728883 in words is "nineteen million, seven hundred twenty-eight thousand, eight hundred eighty-three".