14435989 has 2 divisors, whose sum is σ = 14435990. Its totient is φ = 14435988.

The previous prime is 14435983. The next prime is 14436001. The reversal of 14435989 is 98953441.

It is a happy number.

14435989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 708964 = 3705^2 + 842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14435989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14435983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7217994 + 7217995.

It is an arithmetic number, because the mean of its divisors is an integer number (7217995).

Almost surely, 2^14435989 is an apocalyptic number.

It is an amenable number.

14435989 is a deficient number, since it is larger than the sum of its proper divisors (1).

14435989 is an equidigital number, since it uses as much as digits as its factorization.

14435989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 14435989 is about 3799.4722001878. The cubic root of 14435989 is about 243.4905893283.

The spelling of 14435989 in words is "fourteen million, four hundred thirty-five thousand, nine hundred eighty-nine".