28839752 has 16 divisors (see below), whose sum is σ = 57255660. Its totient is φ = 13571584.

The previous prime is 28839737. The next prime is 28839757. The reversal of 28839752 is 25793882.

It can be written as a sum of positive squares in 2 ways, for example, as 28793956 + 45796 = 5366^2 + 214^2 .

It is not an unprimeable number, because it can be changed into a prime (28839757) 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, 105893 + ... + 106164.

Almost surely, 2^28839752 is an apocalyptic number.

It is an amenable number.

28839752 is a deficient number, since it is larger than the sum of its proper divisors (28415908).

28839752 is a wasteful number, since it uses less digits than its factorization.

28839752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212080 (or 212076 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 28839752 is about 5370.2655427828. The cubic root of 28839752 is about 306.6647374380.

The spelling of 28839752 in words is "twenty-eight million, eight hundred thirty-nine thousand, seven hundred fifty-two".