28796868 has 36 divisors (see below), whose sum is σ = 73884720. Its totient is φ = 9454896.

The previous prime is 28796863. The next prime is 28796881. The reversal of 28796868 is 86869782.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (28796863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3558 + ... + 8381.

Almost surely, 2^28796868 is an apocalyptic number.

It is an amenable number.

28796868 is an abundant number, since it is smaller than the sum of its proper divisors (45087852).

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

28796868 is a wasteful number, since it uses less digits than its factorization.

28796868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016 (or 12011 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 28796868 is about 5366.2713311945. The cubic root of 28796868 is about 306.5126610678.

The spelling of 28796868 in words is "twenty-eight million, seven hundred ninety-six thousand, eight hundred sixty-eight".