16868005 has 36 divisors (see below), whose sum is σ = 25927020. Its totient is φ = 10496640.

The previous prime is 16867979. The next prime is 16868023. The reversal of 16868005 is 50086861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4322241 + 12545764 = 2079^2 + 3542^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16868005 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29361 + ... + 29929.

It is an arithmetic number, because the mean of its divisors is an integer number (720195).

Almost surely, 2^16868005 is an apocalyptic number.

It is an amenable number.

16868005 is a deficient number, since it is larger than the sum of its proper divisors (9059015).

16868005 is a wasteful number, since it uses less digits than its factorization.

16868005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 16868005 is about 4107.0676887531. The cubic root of 16868005 is about 256.4609462686.

The spelling of 16868005 in words is "sixteen million, eight hundred sixty-eight thousand, five".