28560650 has 24 divisors (see below), whose sum is σ = 54957420. Its totient is φ = 11029760.

The previous prime is 28560619. The next prime is 28560671. The reversal of 28560650 is 5606582.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5414929 + 23145721 = 2327^2 + 4811^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8399 + ... + 11298.

Almost surely, 2^28560650 is an apocalyptic number.

28560650 is a deficient number, since it is larger than the sum of its proper divisors (26396770).

28560650 is a wasteful number, since it uses less digits than its factorization.

28560650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19738 (or 19733 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 28560650 is about 5344.2165001055. The cubic root of 28560650 is about 305.6722607760.

The spelling of 28560650 in words is "twenty-eight million, five hundred sixty thousand, six hundred fifty".