28652648 has 16 divisors (see below), whose sum is σ = 54738180. Its totient is φ = 14055808.

The previous prime is 28652647. The next prime is 28652651. The reversal of 28652648 is 84625682.

It can be written as a sum of positive squares in 2 ways, for example, as 28494244 + 158404 = 5338^2 + 398^2 .

It is not an unprimeable number, because it can be changed into a prime (28652647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33365 + ... + 34212.

Almost surely, 2^28652648 is an apocalyptic number.

It is an amenable number.

28652648 is a deficient number, since it is larger than the sum of its proper divisors (26085532).

28652648 is a wasteful number, since it uses less digits than its factorization.

28652648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67636 (or 67632 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 28652648 is about 5352.8168285492. The cubic root of 28652648 is about 306.0001139163. Note that the first 3 decimals are identical.

The spelling of 28652648 in words is "twenty-eight million, six hundred fifty-two thousand, six hundred forty-eight".