16809107 has 18 divisors (see below), whose sum is σ = 20788812. Its totient is φ = 13548864.

The previous prime is 16809103. The next prime is 16809193. The reversal of 16809107 is 70190861.

It is not a de Polignac number, because 16809107 - 2² = 16809103 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16809101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13568 + ... + 14754.

It is an arithmetic number, because the mean of its divisors is an integer number (1154934).

Almost surely, 2^16809107 is an apocalyptic number.

16809107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16809107 is a deficient number, since it is larger than the sum of its proper divisors (3979705).

16809107 is a wasteful number, since it uses less digits than its factorization.

16809107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 16809107 is about 4099.8910961146. The cubic root of 16809107 is about 256.1621033459.

Adding to 16809107 its reverse (70190861), we get a palindrome (86999968).

The spelling of 16809107 in words is "sixteen million, eight hundred nine thousand, one hundred seven".