16469999 has 24 divisors (see below), whose sum is σ = 21238560. Its totient is φ = 12422592.

The previous prime is 16469993. The next prime is 16470011. The reversal of 16469999 is 99996461.

It is not a de Polignac number, because 16469999 - 2⁴ = 16469983 is a prime.

16469999 is a modest number, since divided by 9999 gives 1646 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 16469999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16469993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208442 + ... + 208520.

It is an arithmetic number, because the mean of its divisors is an integer number (884940).

Almost surely, 2^16469999 is an apocalyptic number.

16469999 is a deficient number, since it is larger than the sum of its proper divisors (4768561).

16469999 is an equidigital number, since it uses as much as digits as its factorization.

16469999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 128 counting only the distinct ones).

The product of its digits is 944784, while the sum is 53.

The square root of 16469999 is about 4058.3246543371. The cubic root of 16469999 is about 254.4277775053.

The spelling of 16469999 in words is "sixteen million, four hundred sixty-nine thousand, nine hundred ninety-nine".