16999005 has 32 divisors (see below), whose sum is σ = 28385280. Its totient is φ = 8677440.

The previous prime is 16998973. The next prime is 16999013. The reversal of 16999005 is 50099961.

It is not a de Polignac number, because 16999005 - 2⁵ = 16998973 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 64504 + ... + 64766.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^16999005 is an apocalyptic number.

16999005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16999005 is a deficient number, since it is larger than the sum of its proper divisors (11386275).

16999005 is a wasteful number, since it uses less digits than its factorization.

16999005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 16999005 is about 4122.9849623786. The cubic root of 16999005 is about 257.1231424480.

The spelling of 16999005 in words is "sixteen million, nine hundred ninety-nine thousand, five".