16434589 has 2 divisors, whose sum is σ = 16434590. Its totient is φ = 16434588.

The previous prime is 16434571. The next prime is 16434617. The reversal of 16434589 is 98543461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11222500 + 5212089 = 3350^2 + 2283^2 .

It is an emirp because it is prime and its reverse (98543461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16434589 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 (16434569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8217294 + 8217295.

It is an arithmetic number, because the mean of its divisors is an integer number (8217295).

Almost surely, 2^16434589 is an apocalyptic number.

It is an amenable number.

16434589 is a deficient number, since it is larger than the sum of its proper divisors (1).

16434589 is an equidigital number, since it uses as much as digits as its factorization.

16434589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 16434589 is about 4053.9596692616. The cubic root of 16434589 is about 254.2453093321.

The spelling of 16434589 in words is "sixteen million, four hundred thirty-four thousand, five hundred eighty-nine".