16825489 has 8 divisors (see below), whose sum is σ = 17733312. Its totient is φ = 15932400.

The previous prime is 16825453. The next prime is 16825493. The reversal of 16825489 is 98452861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16825489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16825789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299 + ... + 5944.

It is an arithmetic number, because the mean of its divisors is an integer number (2216664).

Almost surely, 2^16825489 is an apocalyptic number.

It is an amenable number.

16825489 is a deficient number, since it is larger than the sum of its proper divisors (907823).

16825489 is a wasteful number, since it uses less digits than its factorization.

16825489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367.

The product of its digits is 138240, while the sum is 43.

The square root of 16825489 is about 4101.8884675232. Note that the first 3 decimals coincide. The cubic root of 16825489 is about 256.2452940639.

The spelling of 16825489 in words is "sixteen million, eight hundred twenty-five thousand, four hundred eighty-nine".