19299899 has 2 divisors, whose sum is σ = 19299900. Its totient is φ = 19299898.

The previous prime is 19299883. The next prime is 19299901. The reversal of 19299899 is 99899291.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19299899 - 2⁴ = 19299883 is a prime.

It is a super-2 number, since 2×19299899² = 744972202820402, which contains 22 as substring.

Together with 19299901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19292899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9649949 + 9649950.

It is an arithmetic number, because the mean of its divisors is an integer number (9649950).

Almost surely, 2^19299899 is an apocalyptic number.

19299899 is a deficient number, since it is larger than the sum of its proper divisors (1).

19299899 is an equidigital number, since it uses as much as digits as its factorization.

19299899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 56.

The square root of 19299899 is about 4393.1650321835. The cubic root of 19299899 is about 268.2367913526.

The spelling of 19299899 in words is "nineteen million, two hundred ninety-nine thousand, eight hundred ninety-nine".