28317696 has 96 divisors (see below), whose sum is σ = 82555200. Its totient is φ = 8560640.

The previous prime is 28317683. The next prime is 28317697. The reversal of 28317696 is 69671382.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28317697) 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, 67375 + ... + 67793.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 2^28317696 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 28317696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41277600).

28317696 is an abundant number, since it is smaller than the sum of its proper divisors (54237504).

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

28317696 is a wasteful number, since it uses less digits than its factorization.

28317696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 435 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 28317696 is about 5321.4373998009. The cubic root of 28317696 is about 304.8030476201.

The spelling of 28317696 in words is "twenty-eight million, three hundred seventeen thousand, six hundred ninety-six".