16873919 has 8 divisors (see below), whose sum is σ = 18196080. Its totient is φ = 15595200.

The previous prime is 16873907. The next prime is 16873921. The reversal of 16873919 is 91937861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16873919 - 2⁴ = 16873903 is a prime.

It is a super-2 number, since 2×16873919² = 569458284837122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16873919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16873939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10052 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (2274510).

Almost surely, 2^16873919 is an apocalyptic number.

16873919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16873919 is a deficient number, since it is larger than the sum of its proper divisors (1322161).

16873919 is a wasteful number, since it uses less digits than its factorization.

16873919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21721.

The product of its digits is 81648, while the sum is 44.

The square root of 16873919 is about 4107.7876040516. The cubic root of 16873919 is about 256.4909148949.

The spelling of 16873919 in words is "sixteen million, eight hundred seventy-three thousand, nine hundred nineteen".