16868807 has 4 divisors (see below), whose sum is σ = 17450520. Its totient is φ = 16287096.

The previous prime is 16868801. The next prime is 16868833. The reversal of 16868807 is 70886861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70886861 = 937 ⋅75653.

It is not a de Polignac number, because 16868807 - 2²⁴ = 91591 is a prime.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290813 + ... + 290870.

It is an arithmetic number, because the mean of its divisors is an integer number (4362630).

Almost surely, 2^16868807 is an apocalyptic number.

16868807 is a deficient number, since it is larger than the sum of its proper divisors (581713).

16868807 is an equidigital number, since it uses as much as digits as its factorization.

16868807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581712.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 16868807 is about 4107.1653241622. The cubic root of 16868807 is about 256.4650107370.

The spelling of 16868807 in words is "sixteen million, eight hundred sixty-eight thousand, eight hundred seven".