28347528 has 32 divisors (see below), whose sum is σ = 77312160. Its totient is φ = 8590080.

The previous prime is 28347511. The next prime is 28347541. The reversal of 28347528 is 82574382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53425 + ... + 53952.

It is an arithmetic number, because the mean of its divisors is an integer number (2416005).

Almost surely, 2^28347528 is an apocalyptic number.

It is an amenable number.

28347528 is an abundant number, since it is smaller than the sum of its proper divisors (48964632).

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

28347528 is a wasteful number, since it uses less digits than its factorization.

28347528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107397 (or 107393 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 28347528 is about 5324.2396640272. The cubic root of 28347528 is about 304.9100442408.

The spelling of 28347528 in words is "twenty-eight million, three hundred forty-seven thousand, five hundred twenty-eight".