16897328 has 20 divisors (see below), whose sum is σ = 37415760. Its totient is φ = 7241664.

The previous prime is 16897313. The next prime is 16897339. The reversal of 16897328 is 82379861.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75323 + ... + 75546.

It is an arithmetic number, because the mean of its divisors is an integer number (1870788).

Almost surely, 2^16897328 is an apocalyptic number.

It is an amenable number.

16897328 is an abundant number, since it is smaller than the sum of its proper divisors (20518432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16897328 is a wasteful number, since it uses less digits than its factorization.

16897328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150884 (or 150878 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 16897328 is about 4110.6359605297. The cubic root of 16897328 is about 256.6094690859.

The spelling of 16897328 in words is "sixteen million, eight hundred ninety-seven thousand, three hundred twenty-eight".