28826863 has 8 divisors (see below), whose sum is σ = 31438400. Its totient is φ = 26271648.

The previous prime is 28826851. The next prime is 28826873. The reversal of 28826863 is 36862882.

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

It is not a de Polignac number, because 28826863 - 2⁹ = 28826351 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 (28826803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13008 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (3929800).

Almost surely, 2^28826863 is an apocalyptic number.

28826863 is a deficient number, since it is larger than the sum of its proper divisors (2611537).

28826863 is a wasteful number, since it uses less digits than its factorization.

28826863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28161.

The product of its digits is 221184, while the sum is 43.

The square root of 28826863 is about 5369.0653749046. The cubic root of 28826863 is about 306.6190459820.

The spelling of 28826863 in words is "twenty-eight million, eight hundred twenty-six thousand, eight hundred sixty-three".