14978893 has 2 divisors, whose sum is σ = 14978894. Its totient is φ = 14978892.

The previous prime is 14978891. The next prime is 14978959. The reversal of 14978893 is 39887941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12659364 + 2319529 = 3558^2 + 1523^2 .

It is a cyclic number.

It is not a de Polignac number, because 14978893 - 2¹ = 14978891 is a prime.

Together with 14978891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14978891) 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, 7489446 + 7489447.

It is an arithmetic number, because the mean of its divisors is an integer number (7489447).

Almost surely, 2^14978893 is an apocalyptic number.

It is an amenable number.

14978893 is a deficient number, since it is larger than the sum of its proper divisors (1).

14978893 is an equidigital number, since it uses as much as digits as its factorization.

14978893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 14978893 is about 3870.2574849744. The cubic root of 14978893 is about 246.5054768260.

The spelling of 14978893 in words is "fourteen million, nine hundred seventy-eight thousand, eight hundred ninety-three".