14993819 has 2 divisors, whose sum is σ = 14993820. Its totient is φ = 14993818.

The previous prime is 14993807. The next prime is 14993821. The reversal of 14993819 is 91839941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14993819 - 2¹⁶ = 14928283 is a prime.

It is a super-2 number, since 2×14993819² = 449629216409522, which contains 22 as substring.

Together with 14993821, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14993819.

It is not a weakly prime, because it can be changed into another prime (14996819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7496909 + 7496910.

It is an arithmetic number, because the mean of its divisors is an integer number (7496910).

Almost surely, 2^14993819 is an apocalyptic number.

14993819 is a deficient number, since it is larger than the sum of its proper divisors (1).

14993819 is an equidigital number, since it uses as much as digits as its factorization.

14993819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 14993819 is about 3872.1853003182. The cubic root of 14993819 is about 246.5873279861.

The spelling of 14993819 in words is "fourteen million, nine hundred ninety-three thousand, eight hundred nineteen".