19450799 has 2 divisors, whose sum is σ = 19450800. Its totient is φ = 19450798.

The previous prime is 19450741. The next prime is 19450811. The reversal of 19450799 is 99705491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19450799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19450199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9725399 + 9725400.

It is an arithmetic number, because the mean of its divisors is an integer number (9725400).

Almost surely, 2^19450799 is an apocalyptic number.

19450799 is a deficient number, since it is larger than the sum of its proper divisors (1).

19450799 is an equidigital number, since it uses as much as digits as its factorization.

19450799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 19450799 is about 4410.3059984541. The cubic root of 19450799 is about 268.9340643526.

The spelling of 19450799 in words is "nineteen million, four hundred fifty thousand, seven hundred ninety-nine".