19936793 has 2 divisors, whose sum is σ = 19936794. Its totient is φ = 19936792.

The previous prime is 19936781. The next prime is 19936799. The reversal of 19936793 is 39763991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19829209 + 107584 = 4453^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 19936793 - 2¹⁸ = 19674649 is a prime.

It is not a weakly prime, because it can be changed into another prime (19936799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9968396 + 9968397.

It is an arithmetic number, because the mean of its divisors is an integer number (9968397).

Almost surely, 2^19936793 is an apocalyptic number.

It is an amenable number.

19936793 is a deficient number, since it is larger than the sum of its proper divisors (1).

19936793 is an equidigital number, since it uses as much as digits as its factorization.

19936793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 275562, while the sum is 47.

The square root of 19936793 is about 4465.0636053700. The cubic root of 19936793 is about 271.1555095713.

The spelling of 19936793 in words is "nineteen million, nine hundred thirty-six thousand, seven hundred ninety-three".