16808229 has 10 divisors (see below), whose sum is σ = 25108710. Its totient is φ = 11205432.

The previous prime is 16808221. The next prime is 16808269. The reversal of 16808229 is 92280861.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 39204 = 4095^2 + 198^2 .

It is not a de Polignac number, because 16808229 - 2³ = 16808221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16808193 and 16808202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16808221) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 103674 + ... + 103835.

It is an arithmetic number, because the mean of its divisors is an integer number (2510871).

Almost surely, 2^16808229 is an apocalyptic number.

It is an amenable number.

16808229 is a deficient number, since it is larger than the sum of its proper divisors (8300481).

16808229 is an equidigital number, since it uses as much as digits as its factorization.

16808229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207521 (or 207512 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 16808229 is about 4099.7840187015. The cubic root of 16808229 is about 256.1576431795.

The spelling of 16808229 in words is "sixteen million, eight hundred eight thousand, two hundred twenty-nine".