16346609 has 2 divisors, whose sum is σ = 16346610. Its totient is φ = 16346608.

The previous prime is 16346557. The next prime is 16346611. The reversal of 16346609 is 90664361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 5640625 = 3272^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 16346609 - 2²⁰ = 15298033 is a prime.

Together with 16346611, 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 (16346689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8173304 + 8173305.

It is an arithmetic number, because the mean of its divisors is an integer number (8173305).

Almost surely, 2^16346609 is an apocalyptic number.

It is an amenable number.

16346609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16346609 is an equidigital number, since it uses as much as digits as its factorization.

16346609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 16346609 is about 4043.0939885192. The cubic root of 16346609 is about 253.7908098437.

The spelling of 16346609 in words is "sixteen million, three hundred forty-six thousand, six hundred nine".