19830799 has 2 divisors, whose sum is σ = 19830800. Its totient is φ = 19830798.

The previous prime is 19830787. The next prime is 19830821. The reversal of 19830799 is 99703891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19830799 - 2¹¹ = 19828751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19830599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9915399 + 9915400.

It is an arithmetic number, because the mean of its divisors is an integer number (9915400).

Almost surely, 2^19830799 is an apocalyptic number.

19830799 is a deficient number, since it is larger than the sum of its proper divisors (1).

19830799 is an equidigital number, since it uses as much as digits as its factorization.

19830799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 19830799 is about 4453.1785277485. The cubic root of 19830799 is about 270.6741225254.

The spelling of 19830799 in words is "nineteen million, eight hundred thirty thousand, seven hundred ninety-nine".