28550634 has 32 divisors (see below), whose sum is σ = 66595200. Its totient is φ = 8156736.

The previous prime is 28550617. The next prime is 28550647. The reversal of 28550634 is 43605582.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28550595 and 28550604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4879 + ... + 8994.

It is an arithmetic number, because the mean of its divisors is an integer number (2081100).

Almost surely, 2^28550634 is an apocalyptic number.

28550634 is an abundant number, since it is smaller than the sum of its proper divisors (38044566).

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

28550634 is a wasteful number, since it uses less digits than its factorization.

28550634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13899 (or 13885 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 28550634 is about 5343.2793301492. The cubic root of 28550634 is about 305.6365242956.

The spelling of 28550634 in words is "twenty-eight million, five hundred fifty thousand, six hundred thirty-four".