28882636 has 12 divisors (see below), whose sum is σ = 51113160. Its totient is φ = 14278880.

The previous prime is 28882621. The next prime is 28882657. The reversal of 28882636 is 63628882.

It is a junction number, because it is equal to n+sod(n) for n = 28882592 and 28882601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40210 + ... + 40921.

It is an arithmetic number, because the mean of its divisors is an integer number (4259430).

Almost surely, 2^28882636 is an apocalyptic number.

It is an amenable number.

28882636 is a deficient number, since it is larger than the sum of its proper divisors (22230524).

28882636 is a wasteful number, since it uses less digits than its factorization.

28882636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81224 (or 81222 counting only the distinct ones).

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

The square root of 28882636 is about 5374.2567858263. The cubic root of 28882636 is about 306.8166631269.

The spelling of 28882636 in words is "twenty-eight million, eight hundred eighty-two thousand, six hundred thirty-six".