19730299 has 2 divisors, whose sum is σ = 19730300. Its totient is φ = 19730298.

The previous prime is 19730279. The next prime is 19730309. The reversal of 19730299 is 99203791.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19730299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19730209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9865149 + 9865150.

It is an arithmetic number, because the mean of its divisors is an integer number (9865150).

Almost surely, 2^19730299 is an apocalyptic number.

19730299 is a deficient number, since it is larger than the sum of its proper divisors (1).

19730299 is an equidigital number, since it uses as much as digits as its factorization.

19730299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 19730299 is about 4441.8801199492. The cubic root of 19730299 is about 270.2161004271.

The spelling of 19730299 in words is "nineteen million, seven hundred thirty thousand, two hundred ninety-nine".