28829732 has 12 divisors (see below), whose sum is σ = 50821260. Its totient is φ = 14309376.

The previous prime is 28829729. The next prime is 28829747. The reversal of 28829732 is 23792882.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 5635876 = 4816^2 + 2374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28829732.

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 3 ways as a sum of consecutive naturals, for example, 25757 + ... + 26852.

It is an arithmetic number, because the mean of its divisors is an integer number (4235105).

Almost surely, 2^28829732 is an apocalyptic number.

It is an amenable number.

28829732 is a deficient number, since it is larger than the sum of its proper divisors (21991528).

28829732 is a wasteful number, since it uses less digits than its factorization.

28829732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52750 (or 52748 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 28829732 is about 5369.3325469745. The cubic root of 28829732 is about 306.6292177543.

The spelling of 28829732 in words is "twenty-eight million, eight hundred twenty-nine thousand, seven hundred thirty-two".