14780989 has 2 divisors, whose sum is σ = 14780990. Its totient is φ = 14780988.

The previous prime is 14780977. The next prime is 14781001. The reversal of 14780989 is 98908741.

It is a happy number.

14780989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (14780977) and next prime (14781001).

It can be written as a sum of positive squares in only one way, i.e., 8655364 + 6125625 = 2942^2 + 2475^2 .

It is an emirp because it is prime and its reverse (98908741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14780989 - 2¹⁷ = 14649917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14780929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7390494 + 7390495.

It is an arithmetic number, because the mean of its divisors is an integer number (7390495).

Almost surely, 2^14780989 is an apocalyptic number.

It is an amenable number.

14780989 is a deficient number, since it is larger than the sum of its proper divisors (1).

14780989 is an equidigital number, since it uses as much as digits as its factorization.

14780989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 14780989 is about 3844.6051812898. The cubic root of 14780989 is about 245.4150344142.

The spelling of 14780989 in words is "fourteen million, seven hundred eighty thousand, nine hundred eighty-nine".