28284484 has 6 divisors (see below), whose sum is σ = 49497854. Its totient is φ = 14142240.

The previous prime is 28284479. The next prime is 28284499. The reversal of 28284484 is 48448282.

It can be written as a sum of positive squares in only one way, i.e., 26296384 + 1988100 = 5128^2 + 1410^2 .

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 as a sum of consecutive naturals, namely, 3535557 + ... + 3535564.

Almost surely, 2^28284484 is an apocalyptic number.

It is an amenable number.

28284484 is a deficient number, since it is larger than the sum of its proper divisors (21213370).

28284484 is a wasteful number, since it uses less digits than its factorization.

28284484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071125 (or 7071123 counting only the distinct ones).

The product of its digits is 131072, while the sum is 40.

The square root of 28284484 is about 5318.3158988537. The cubic root of 28284484 is about 304.6838397228.

The spelling of 28284484 in words is "twenty-eight million, two hundred eighty-four thousand, four hundred eighty-four".