16009799 has 8 divisors (see below), whose sum is σ = 18149040. Its totient is φ = 14000256.

The previous prime is 16009781. The next prime is 16009823. The reversal of 16009799 is 99790061.

It is a happy number.

16009799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16009799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16009729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32162 + ... + 32655.

It is an arithmetic number, because the mean of its divisors is an integer number (2268630).

Almost surely, 2^16009799 is an apocalyptic number.

16009799 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16009799 is a deficient number, since it is larger than the sum of its proper divisors (2139241).

16009799 is a wasteful number, since it uses less digits than its factorization.

16009799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64849.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 16009799 is about 4001.2246875176. The cubic root of 16009799 is about 252.0356410075.

The spelling of 16009799 in words is "sixteen million, nine thousand, seven hundred ninety-nine".