16868205 has 12 divisors (see below), whose sum is σ = 29238300. Its totient is φ = 8996352.

The previous prime is 16868197. The next prime is 16868209. The reversal of 16868205 is 50286861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 5294601 = 3402^2 + 2301^2 .

It is not a de Polignac number, because 16868205 - 2³ = 16868197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16868205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187380 + ... + 187469.

It is an arithmetic number, because the mean of its divisors is an integer number (2436525).

Almost surely, 2^16868205 is an apocalyptic number.

16868205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16868205 is a deficient number, since it is larger than the sum of its proper divisors (12370095).

16868205 is a wasteful number, since it uses less digits than its factorization.

16868205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374860 (or 374857 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 16868205 is about 4107.0920369527. The cubic root of 16868205 is about 256.4619598638.

The spelling of 16868205 in words is "sixteen million, eight hundred sixty-eight thousand, two hundred five".