28682863 has 8 divisors (see below), whose sum is σ = 32651136. Its totient is φ = 24941400.

The previous prime is 28682813. The next prime is 28682867. The reversal of 28682863 is 36828682.

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

It is not a de Polignac number, because 28682863 - 2¹³ = 28674671 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 (28682867) 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, 56433 + ... + 56938.

It is an arithmetic number, because the mean of its divisors is an integer number (4081392).

Almost surely, 2^28682863 is an apocalyptic number.

28682863 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28682863 is a deficient number, since it is larger than the sum of its proper divisors (3968273).

28682863 is a wasteful number, since it uses less digits than its factorization.

28682863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113405.

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

The square root of 28682863 is about 5355.6384306635. The cubic root of 28682863 is about 306.1076379557.

The spelling of 28682863 in words is "twenty-eight million, six hundred eighty-two thousand, eight hundred sixty-three".