16087609 has 2 divisors, whose sum is σ = 16087610. Its totient is φ = 16087608.

The previous prime is 16087607. The next prime is 16087613. The reversal of 16087609 is 90678061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15327225 + 760384 = 3915^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 16087609 - 2¹ = 16087607 is a prime.

It is a super-2 number, since 2×16087609² = 517622326673762, which contains 22 as substring.

Together with 16087607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16087601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8043804 + 8043805.

It is an arithmetic number, because the mean of its divisors is an integer number (8043805).

Almost surely, 2^16087609 is an apocalyptic number.

It is an amenable number.

16087609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16087609 is an equidigital number, since it uses as much as digits as its factorization.

16087609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 16087609 is about 4010.9361750095. The cubic root of 16087609 is about 252.4432915161.

The spelling of 16087609 in words is "sixteen million, eighty-seven thousand, six hundred nine".