16940899 has 2 divisors, whose sum is σ = 16940900. Its totient is φ = 16940898.

The previous prime is 16940897. The next prime is 16940909. The reversal of 16940899 is 99804961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16940899 - 2¹ = 16940897 is a prime.

Together with 16940897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16940893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8470449 + 8470450.

It is an arithmetic number, because the mean of its divisors is an integer number (8470450).

Almost surely, 2^16940899 is an apocalyptic number.

16940899 is a deficient number, since it is larger than the sum of its proper divisors (1).

16940899 is an equidigital number, since it uses as much as digits as its factorization.

16940899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 16940899 is about 4115.9323366644. The cubic root of 16940899 is about 256.8298418929.

The spelling of 16940899 in words is "sixteen million, nine hundred forty thousand, eight hundred ninety-nine".