28782752 has 24 divisors (see below), whose sum is σ = 59131296. Its totient is φ = 13765312.

The previous prime is 28782749. The next prime is 28782757. The reversal of 28782752 is 25728782.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28782757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18818 + ... + 20289.

It is an arithmetic number, because the mean of its divisors is an integer number (2463804).

Almost surely, 2^28782752 is an apocalyptic number.

It is an amenable number.

28782752 is an abundant number, since it is smaller than the sum of its proper divisors (30348544).

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

28782752 is a wasteful number, since it uses less digits than its factorization.

28782752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39140 (or 39132 counting only the distinct ones).

The product of its digits is 125440, while the sum is 41.

The square root of 28782752 is about 5364.9559178058. The cubic root of 28782752 is about 306.4625695105.

The spelling of 28782752 in words is "twenty-eight million, seven hundred eighty-two thousand, seven hundred fifty-two".