16928825 has 12 divisors (see below), whose sum is σ = 21090540. Its totient is φ = 13479360.

The previous prime is 16928819. The next prime is 16928833. The reversal of 16928825 is 52882961.

It can be written as a sum of positive squares in 6 ways, for example, as 44944 + 16883881 = 212^2 + 4109^2 .

It is not a de Polignac number, because 16928825 - 2²⁴ = 151609 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4247 + ... + 7203.

It is an arithmetic number, because the mean of its divisors is an integer number (1757545).

Almost surely, 2^16928825 is an apocalyptic number.

It is an amenable number.

16928825 is a deficient number, since it is larger than the sum of its proper divisors (4161715).

16928825 is a wasteful number, since it uses less digits than its factorization.

16928825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196 (or 3191 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 16928825 is about 4114.4653358608. The cubic root of 16928825 is about 256.7688120640.

The spelling of 16928825 in words is "sixteen million, nine hundred twenty-eight thousand, eight hundred twenty-five".