16928919 has 40 divisors (see below), whose sum is σ = 29369120. Its totient is φ = 9517824.

The previous prime is 16928917. The next prime is 16928921. The reversal of 16928919 is 91982961.

It is an interprime number because it is at equal distance from previous prime (16928917) and next prime (16928921).

It is not a de Polignac number, because 16928919 - 2¹ = 16928917 is a prime.

It is a super-2 number, since 2×16928919² = 573176597017122, 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 (16928917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41187 + ... + 41595.

It is an arithmetic number, because the mean of its divisors is an integer number (734228).

Almost surely, 2^16928919 is an apocalyptic number.

16928919 is a deficient number, since it is larger than the sum of its proper divisors (12440201).

16928919 is an equidigital number, since it uses as much as digits as its factorization.

16928919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 492 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 16928919 is about 4114.4767589573. The cubic root of 16928919 is about 256.7692873131.

The spelling of 16928919 in words is "sixteen million, nine hundred twenty-eight thousand, nine hundred nineteen".