19936799 has 2 divisors, whose sum is σ = 19936800. Its totient is φ = 19936798.

The previous prime is 19936793. The next prime is 19936817. The reversal of 19936799 is 99763991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19936799 - 2¹⁶ = 19871263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19936799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19936793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9968399 + 9968400.

It is an arithmetic number, because the mean of its divisors is an integer number (9968400).

Almost surely, 2^19936799 is an apocalyptic number.

19936799 is a deficient number, since it is larger than the sum of its proper divisors (1).

19936799 is an equidigital number, since it uses as much as digits as its factorization.

19936799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 826686, while the sum is 53.

The square root of 19936799 is about 4465.0642772529. The cubic root of 19936799 is about 271.1555367728.

The spelling of 19936799 in words is "nineteen million, nine hundred thirty-six thousand, seven hundred ninety-nine".