16928349 has 4 divisors (see below), whose sum is σ = 22571136. Its totient is φ = 11285564.

The previous prime is 16928347. The next prime is 16928377. The reversal of 16928349 is 94382961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16928349 - 2¹ = 16928347 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16928349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16928341) 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, 2821389 + ... + 2821394.

It is an arithmetic number, because the mean of its divisors is an integer number (5642784).

Almost surely, 2^16928349 is an apocalyptic number.

It is an amenable number.

16928349 is a deficient number, since it is larger than the sum of its proper divisors (5642787).

16928349 is an equidigital number, since it uses as much as digits as its factorization.

16928349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642786.

The product of its digits is 93312, while the sum is 42.

The square root of 16928349 is about 4114.4074907573. The cubic root of 16928349 is about 256.7664054568.

The spelling of 16928349 in words is "sixteen million, nine hundred twenty-eight thousand, three hundred forty-nine".