28963286 has 24 divisors (see below), whose sum is σ = 49412160. Its totient is φ = 12708080.

The previous prime is 28963271. The next prime is 28963303. The reversal of 28963286 is 68236982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4955 + ... + 9081.

It is an arithmetic number, because the mean of its divisors is an integer number (2058840).

Almost surely, 2^28963286 is an apocalyptic number.

28963286 is a deficient number, since it is larger than the sum of its proper divisors (20448874).

28963286 is a wasteful number, since it uses less digits than its factorization.

28963286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180 (or 4169 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 28963286 is about 5381.7549182400. The cubic root of 28963286 is about 307.1019760470.

The spelling of 28963286 in words is "twenty-eight million, nine hundred sixty-three thousand, two hundred eighty-six".