16434569 has 2 divisors, whose sum is σ = 16434570. Its totient is φ = 16434568.

The previous prime is 16434547. The next prime is 16434571. The reversal of 16434569 is 96543461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8340544 + 8094025 = 2888^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 16434569 - 2¹² = 16430473 is a prime.

It is a super-2 number, since 2×16434569² = 540190116431522, which contains 22 as substring.

Together with 16434571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16434589) 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, 8217284 + 8217285.

It is an arithmetic number, because the mean of its divisors is an integer number (8217285).

Almost surely, 2^16434569 is an apocalyptic number.

It is an amenable number.

16434569 is a deficient number, since it is larger than the sum of its proper divisors (1).

16434569 is an equidigital number, since it uses as much as digits as its factorization.

16434569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 16434569 is about 4053.9572025368. The cubic root of 16434569 is about 254.2452061979.

The spelling of 16434569 in words is "sixteen million, four hundred thirty-four thousand, five hundred sixty-nine".