16772209 has 8 divisors (see below), whose sum is σ = 17360640. Its totient is φ = 16186800.

The previous prime is 16772207. The next prime is 16772227. The reversal of 16772209 is 90227761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16772209 - 2¹ = 16772207 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16772207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20019 + ... + 20839.

It is an arithmetic number, because the mean of its divisors is an integer number (2170080).

Almost surely, 2^16772209 is an apocalyptic number.

It is an amenable number.

16772209 is a deficient number, since it is larger than the sum of its proper divisors (588431).

16772209 is an equidigital number, since it uses as much as digits as its factorization.

16772209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 16772209 is about 4095.3887483364. The cubic root of 16772209 is about 255.9745305472.

The spelling of 16772209 in words is "sixteen million, seven hundred seventy-two thousand, two hundred nine".