28776633 has 8 divisors (see below), whose sum is σ = 38570496. Its totient is φ = 19083600.

The previous prime is 28776607. The next prime is 28776641. The reversal of 28776633 is 33667782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28776633 - 2⁶ = 28776569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28776653) 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, 24538 + ... + 25683.

It is an arithmetic number, because the mean of its divisors is an integer number (4821312).

Almost surely, 2^28776633 is an apocalyptic number.

It is an amenable number.

28776633 is a deficient number, since it is larger than the sum of its proper divisors (9793863).

28776633 is a wasteful number, since it uses less digits than its factorization.

28776633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50415.

The product of its digits is 254016, while the sum is 42.

The square root of 28776633 is about 5364.3856125376. The cubic root of 28776633 is about 306.4408507468.

The spelling of 28776633 in words is "twenty-eight million, seven hundred seventy-six thousand, six hundred thirty-three".