16799999 has 4 divisors (see below), whose sum is σ = 16872336. Its totient is φ = 16727664.

The previous prime is 16799989. The next prime is 16800023. The reversal of 16799999 is 99999761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16799999 - 2⁴ = 16799983 is a prime.

It is a Duffinian number.

16799999 is a modest number, since divided by 9999 gives 1679 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16799929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35819 + ... + 36284.

It is an arithmetic number, because the mean of its divisors is an integer number (4218084).

Almost surely, 2^16799999 is an apocalyptic number.

16799999 is a deficient number, since it is larger than the sum of its proper divisors (72337).

16799999 is an equidigital number, since it uses as much as digits as its factorization.

16799999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72336.

The product of its digits is 2480058, while the sum is 59.

The square root of 16799999 is about 4098.7801843963. The cubic root of 16799999 is about 256.1158279158.

The spelling of 16799999 in words is "sixteen million, seven hundred ninety-nine thousand, nine hundred ninety-nine".