28776096 has 72 divisors (see below), whose sum is σ = 83862324. Its totient is φ = 9354240.

The previous prime is 28776043. The next prime is 28776101. The reversal of 28776096 is 69067782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28772496 + 3600 = 5364^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10590 + ... + 13026.

Almost surely, 2^28776096 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 28776096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41931162).

28776096 is an abundant number, since it is smaller than the sum of its proper divisors (55086228).

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

28776096 is a wasteful number, since it uses less digits than its factorization.

28776096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494 (or 2483 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 28776096 is about 5364.3355599739. The cubic root of 28776096 is about 306.4389445734.

The spelling of 28776096 in words is "twenty-eight million, seven hundred seventy-six thousand, ninety-six".