14998409 has 2 divisors, whose sum is σ = 14998410. Its totient is φ = 14998408.

The previous prime is 14998397. The next prime is 14998411. The reversal of 14998409 is 90489941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13162384 + 1836025 = 3628^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 14998409 - 2¹² = 14994313 is a prime.

It is a Sophie Germain prime.

Together with 14998411, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14998409.

It is not a weakly prime, because it can be changed into another prime (14998469) 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, 7499204 + 7499205.

It is an arithmetic number, because the mean of its divisors is an integer number (7499205).

Almost surely, 2^14998409 is an apocalyptic number.

It is an amenable number.

14998409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14998409 is an equidigital number, since it uses as much as digits as its factorization.

14998409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 14998409 is about 3872.7779435439. Note that the first 3 decimals coincide. The cubic root of 14998409 is about 246.6124876949.

The spelling of 14998409 in words is "fourteen million, nine hundred ninety-eight thousand, four hundred nine".