28682736 has 40 divisors (see below), whose sum is σ = 74292864. Its totient is φ = 9535680.

The previous prime is 28682713. The next prime is 28682777. The reversal of 28682736 is 63728682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29815 + ... + 30761.

Almost surely, 2^28682736 is an apocalyptic number.

It is an amenable number.

28682736 is an abundant number, since it is smaller than the sum of its proper divisors (45610128).

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

28682736 is a wasteful number, since it uses less digits than its factorization.

28682736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1583 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 28682736 is about 5355.6265739874. The cubic root of 28682736 is about 306.1071861676.

The spelling of 28682736 in words is "twenty-eight million, six hundred eighty-two thousand, seven hundred thirty-six".