28796663 has 6 divisors (see below), whose sum is σ = 33498216. Its totient is φ = 24682812.

The previous prime is 28796653. The next prime is 28796671. The reversal of 28796663 is 36669782.

It is not a de Polignac number, because 28796663 - 2¹² = 28792567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28796633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293795 + ... + 293892.

It is an arithmetic number, because the mean of its divisors is an integer number (5583036).

Almost surely, 2^28796663 is an apocalyptic number.

28796663 is a deficient number, since it is larger than the sum of its proper divisors (4701553).

28796663 is an equidigital number, since it uses as much as digits as its factorization.

28796663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587701 (or 587694 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 28796663 is about 5366.2522303746. The cubic root of 28796663 is about 306.5119337290.

The spelling of 28796663 in words is "twenty-eight million, seven hundred ninety-six thousand, six hundred sixty-three".