28516536 has 48 divisors (see below), whose sum is σ = 80098200. Its totient is φ = 9504864.

The previous prime is 28516519. The next prime is 28516583. The reversal of 28516536 is 63561582.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28516536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5391 + ... + 9278.

Almost surely, 2^28516536 is an apocalyptic number.

It is an amenable number.

28516536 is an abundant number, since it is smaller than the sum of its proper divisors (51581664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28516536 is a wasteful number, since it uses less digits than its factorization.

28516536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14690 (or 14674 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 28516536 is about 5340.0876397303. The cubic root of 28516536 is about 305.5148020040.

The spelling of 28516536 in words is "twenty-eight million, five hundred sixteen thousand, five hundred thirty-six".