28047336 has 16 divisors (see below), whose sum is σ = 70118400. Its totient is φ = 9349104.

The previous prime is 28047329. The next prime is 28047347. The reversal of 28047336 is 63374082.

It is a junction number, because it is equal to n+sod(n) for n = 28047297 and 28047306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584296 + ... + 584343.

It is an arithmetic number, because the mean of its divisors is an integer number (4382400).

Almost surely, 2^28047336 is an apocalyptic number.

It is an amenable number.

28047336 is an abundant number, since it is smaller than the sum of its proper divisors (42071064).

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

28047336 is a wasteful number, since it uses less digits than its factorization.

28047336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168648 (or 1168644 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 28047336 is about 5295.9735648887. The cubic root of 28047336 is about 303.8299198669.

The spelling of 28047336 in words is "twenty-eight million, forty-seven thousand, three hundred thirty-six".