14820989 has 2 divisors, whose sum is σ = 14820990. Its totient is φ = 14820988.

The previous prime is 14820961. The next prime is 14820997. The reversal of 14820989 is 98902841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14760964 + 60025 = 3842^2 + 245^2 .

It is an emirp because it is prime and its reverse (98902841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14820989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14820919) 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, 7410494 + 7410495.

It is an arithmetic number, because the mean of its divisors is an integer number (7410495).

Almost surely, 2^14820989 is an apocalyptic number.

It is an amenable number.

14820989 is a deficient number, since it is larger than the sum of its proper divisors (1).

14820989 is an equidigital number, since it uses as much as digits as its factorization.

14820989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 14820989 is about 3849.8037612325. The cubic root of 14820989 is about 245.6362140097.

The spelling of 14820989 in words is "fourteen million, eight hundred twenty thousand, nine hundred eighty-nine".