28088763 has 4 divisors (see below), whose sum is σ = 37451688. Its totient is φ = 18725840.

The previous prime is 28088747. The next prime is 28088789. The reversal of 28088763 is 36788082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28088763 - 2⁴ = 28088747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28008763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4681458 + ... + 4681463.

It is an arithmetic number, because the mean of its divisors is an integer number (9362922).

Almost surely, 2^28088763 is an apocalyptic number.

28088763 is a deficient number, since it is larger than the sum of its proper divisors (9362925).

28088763 is an equidigital number, since it uses as much as digits as its factorization.

28088763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362924.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 28088763 is about 5299.8833006020. The cubic root of 28088763 is about 303.9794357916.

The spelling of 28088763 in words is "twenty-eight million, eighty-eight thousand, seven hundred sixty-three".