28497168 has 120 divisors (see below), whose sum is σ = 96565248. Its totient is φ = 7658496.

The previous prime is 28497163. The next prime is 28497179. The reversal of 28497168 is 86179482.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28497163) 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 23 ways as a sum of consecutive naturals, for example, 16305 + ... + 17967.

Almost surely, 2^28497168 is an apocalyptic number.

28497168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28497168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48282624).

28497168 is an abundant number, since it is smaller than the sum of its proper divisors (68068080).

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

28497168 is a wasteful number, since it uses less digits than its factorization.

28497168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1692 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 28497168 is about 5338.2738783243. The cubic root of 28497168 is about 305.4456193279.

The spelling of 28497168 in words is "twenty-eight million, four hundred ninety-seven thousand, one hundred sixty-eight".