16868805 has 16 divisors (see below), whose sum is σ = 27861504. Its totient is φ = 8706240.

The previous prime is 16868801. The next prime is 16868833. The reversal of 16868805 is 50886861.

It is not a de Polignac number, because 16868805 - 2² = 16868801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17674 + ... + 18603.

It is an arithmetic number, because the mean of its divisors is an integer number (1741344).

Almost surely, 2^16868805 is an apocalyptic number.

16868805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16868805 is a deficient number, since it is larger than the sum of its proper divisors (10992699).

16868805 is a wasteful number, since it uses less digits than its factorization.

16868805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36316.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 16868805 is about 4107.1650806852. The cubic root of 16868805 is about 256.4650006013.

The spelling of 16868805 in words is "sixteen million, eight hundred sixty-eight thousand, eight hundred five".