19329929 has 2 divisors, whose sum is σ = 19329930. Its totient is φ = 19329928.

The previous prime is 19329911. The next prime is 19329931. The reversal of 19329929 is 92992391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11235904 + 8094025 = 3352^2 + 2845^2 .

It is an emirp because it is prime and its reverse (92992391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19329929 - 2¹² = 19325833 is a prime.

Together with 19329931, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19329929.

It is not a weakly prime, because it can be changed into another prime (19329329) 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, 9664964 + 9664965.

It is an arithmetic number, because the mean of its divisors is an integer number (9664965).

Almost surely, 2^19329929 is an apocalyptic number.

It is an amenable number.

19329929 is a deficient number, since it is larger than the sum of its proper divisors (1).

19329929 is an equidigital number, since it uses as much as digits as its factorization.

19329929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 44.

The square root of 19329929 is about 4396.5815129484. The cubic root of 19329929 is about 268.3758417625.

The spelling of 19329929 in words is "nineteen million, three hundred twenty-nine thousand, nine hundred twenty-nine".