16913899 has 4 divisors (see below), whose sum is σ = 16922920. Its totient is φ = 16904880.

The previous prime is 16913893. The next prime is 16913909. The reversal of 16913899 is 99831961.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99831961 = 3929 ⋅25409.

It is a cyclic number.

It is not a de Polignac number, because 16913899 - 2⁹ = 16913387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16913893) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 522 + ... + 5839.

It is an arithmetic number, because the mean of its divisors is an integer number (4230730).

Almost surely, 2^16913899 is an apocalyptic number.

16913899 is a deficient number, since it is larger than the sum of its proper divisors (9021).

16913899 is an equidigital number, since it uses as much as digits as its factorization.

16913899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020.

The product of its digits is 104976, while the sum is 46.

The square root of 16913899 is about 4112.6510914494. The cubic root of 16913899 is about 256.6933262539.

The spelling of 16913899 in words is "sixteen million, nine hundred thirteen thousand, eight hundred ninety-nine".