19992029 has 2 divisors, whose sum is σ = 19992030. Its totient is φ = 19992028.

The previous prime is 19992001. The next prime is 19992059. The reversal of 19992029 is 92029991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16999129 + 2992900 = 4123^2 + 1730^2 .

It is an emirp because it is prime and its reverse (92029991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19992029 - 2¹⁶ = 19926493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19992059) 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, 9996014 + 9996015.

It is an arithmetic number, because the mean of its divisors is an integer number (9996015).

Almost surely, 2^19992029 is an apocalyptic number.

It is an amenable number.

19992029 is a deficient number, since it is larger than the sum of its proper divisors (1).

19992029 is an equidigital number, since it uses as much as digits as its factorization.

19992029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 19992029 is about 4471.2446812940. The cubic root of 19992029 is about 271.4056958297.

The spelling of 19992029 in words is "nineteen million, nine hundred ninety-two thousand, twenty-nine".