28583636 has 12 divisors (see below), whose sum is σ = 50416128. Its totient is φ = 14179032.

The previous prime is 28583627. The next prime is 28583651. The reversal of 28583636 is 63638582.

It is a junction number, because it is equal to n+sod(n) for n = 28583593 and 28583602.

It is a congruent number.

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, 27626 + ... + 28641.

It is an arithmetic number, because the mean of its divisors is an integer number (4201344).

Almost surely, 2^28583636 is an apocalyptic number.

It is an amenable number.

28583636 is a deficient number, since it is larger than the sum of its proper divisors (21832492).

28583636 is a wasteful number, since it uses less digits than its factorization.

28583636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56398 (or 56396 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28583636 is about 5346.3666166846. The cubic root of 28583636 is about 305.7542418526.

The spelling of 28583636 in words is "twenty-eight million, five hundred eighty-three thousand, six hundred thirty-six".