28636832 has 24 divisors (see below), whose sum is σ = 64433376. Its totient is φ = 12272832.

The previous prime is 28636813. The next prime is 28636837. The reversal of 28636832 is 23863682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28636837) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 63698 + ... + 64145.

It is an arithmetic number, because the mean of its divisors is an integer number (2684724).

Almost surely, 2^28636832 is an apocalyptic number.

It is an amenable number.

28636832 is an abundant number, since it is smaller than the sum of its proper divisors (35796544).

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

28636832 is a wasteful number, since it uses less digits than its factorization.

28636832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127860 (or 127852 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 28636832 is about 5351.3392716216. The cubic root of 28636832 is about 305.9438004641.

The spelling of 28636832 in words is "twenty-eight million, six hundred thirty-six thousand, eight hundred thirty-two".