19796533 has 2 divisors, whose sum is σ = 19796534. Its totient is φ = 19796532.

The previous prime is 19796509. The next prime is 19796549. The reversal of 19796533 is 33569791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15824484 + 3972049 = 3978^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 19796533 - 2⁵ = 19796501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19796533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19796573) 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, 9898266 + 9898267.

It is an arithmetic number, because the mean of its divisors is an integer number (9898267).

Almost surely, 2^19796533 is an apocalyptic number.

It is an amenable number.

19796533 is a deficient number, since it is larger than the sum of its proper divisors (1).

19796533 is an equidigital number, since it uses as much as digits as its factorization.

19796533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 43.

The square root of 19796533 is about 4449.3295000483. The cubic root of 19796533 is about 270.5181317234.

The spelling of 19796533 in words is "nineteen million, seven hundred ninety-six thousand, five hundred thirty-three".