16874919 has 8 divisors (see below), whose sum is σ = 24999920. Its totient is φ = 11249928.

The previous prime is 16874917. The next prime is 16874929. The reversal of 16874919 is 91947861.

It is a happy number.

It is not a de Polignac number, because 16874919 - 2¹ = 16874917 is a prime.

It is a super-2 number, since 2×16874919² = 569525782513122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16874917) 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 in 7 ways as a sum of consecutive naturals, for example, 312472 + ... + 312525.

It is an arithmetic number, because the mean of its divisors is an integer number (3124990).

Almost surely, 2^16874919 is an apocalyptic number.

16874919 is a deficient number, since it is larger than the sum of its proper divisors (8125001).

16874919 is an equidigital number, since it uses as much as digits as its factorization.

16874919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625006 (or 625000 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 16874919 is about 4107.9093222709. The cubic root of 16874919 is about 256.4959816066.

The spelling of 16874919 in words is "sixteen million, eight hundred seventy-four thousand, nine hundred nineteen".