28843252 has 12 divisors (see below), whose sum is σ = 50768676. Its totient is φ = 14337920.

The previous prime is 28843231. The next prime is 28843261. The reversal of 28843252 is 25234882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25361296 + 3481956 = 5036^2 + 1866^2 .

It is a congruent number.

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, 20149 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (4230723).

Almost surely, 2^28843252 is an apocalyptic number.

It is an amenable number.

28843252 is a deficient number, since it is larger than the sum of its proper divisors (21925424).

28843252 is a wasteful number, since it uses less digits than its factorization.

28843252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41858 (or 41856 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 28843252 is about 5370.5914013263. The cubic root of 28843252 is about 306.6771425743.

The spelling of 28843252 in words is "twenty-eight million, eight hundred forty-three thousand, two hundred fifty-two".