28847250 has 48 divisors (see below), whose sum is σ = 78009048. Its totient is φ = 7692000.

The previous prime is 28847243. The next prime is 28847279. The reversal of 28847250 is 5274882.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2499561 + 26347689 = 1581^2 + 5133^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4161 + ... + 8660.

Almost surely, 2^28847250 is an apocalyptic number.

28847250 is an abundant number, since it is smaller than the sum of its proper divisors (49161798).

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

28847250 is a wasteful number, since it uses less digits than its factorization.

28847250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844 (or 12831 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28847250 is about 5370.9636006959. The cubic root of 28847250 is about 306.6913115565.

The spelling of 28847250 in words is "twenty-eight million, eight hundred forty-seven thousand, two hundred fifty".