28017696 has 96 divisors (see below), whose sum is σ = 84889728. Its totient is φ = 7925760.

The previous prime is 28017677. The next prime is 28017697. The reversal of 28017696 is 69671082.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (28017697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116136 + ... + 116376.

It is an arithmetic number, because the mean of its divisors is an integer number (884268).

Almost surely, 2^28017696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28017696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42444864).

28017696 is an abundant number, since it is smaller than the sum of its proper divisors (56872032).

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

28017696 is a wasteful number, since it uses less digits than its factorization.

28017696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 28017696 is about 5293.1744728471. The cubic root of 28017696 is about 303.7228545235.

The spelling of 28017696 in words is "twenty-eight million, seventeen thousand, six hundred ninety-six".