19930033 has 2 divisors, whose sum is σ = 19930034. Its totient is φ = 19930032.

The previous prime is 19930007. The next prime is 19930061. The reversal of 19930033 is 33003991.

It is a happy number.

It is an a-pointer prime, because the next prime (19930061) can be obtained adding 19930033 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19918369 + 11664 = 4463^2 + 108^2 .

It is an emirp because it is prime and its reverse (33003991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19930033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19929983 and 19930010.

It is not a weakly prime, because it can be changed into another prime (19930073) 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, 9965016 + 9965017.

It is an arithmetic number, because the mean of its divisors is an integer number (9965017).

Almost surely, 2^19930033 is an apocalyptic number.

It is an amenable number.

19930033 is a deficient number, since it is larger than the sum of its proper divisors (1).

19930033 is an equidigital number, since it uses as much as digits as its factorization.

19930033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 19930033 is about 4464.3065530942. The cubic root of 19930033 is about 271.1248590640.

It can be divided in two parts, 1993003 and 3, that added together give a triangular number (1993006 = T₁₉₉₆).

The spelling of 19930033 in words is "nineteen million, nine hundred thirty thousand, thirty-three".