28467812 has 12 divisors (see below), whose sum is σ = 50211840. Its totient is φ = 14121576.

The previous prime is 28467799. The next prime is 28467847. The reversal of 28467812 is 21876482.

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 3 ways as a sum of consecutive naturals, for example, 27512 + ... + 28527.

It is an arithmetic number, because the mean of its divisors is an integer number (4184320).

Almost surely, 2^28467812 is an apocalyptic number.

It is an amenable number.

28467812 is a deficient number, since it is larger than the sum of its proper divisors (21744028).

28467812 is a wasteful number, since it uses less digits than its factorization.

28467812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56170 (or 56168 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 28467812 is about 5335.5235919261. The cubic root of 28467812 is about 305.3406996352.

The spelling of 28467812 in words is "twenty-eight million, four hundred sixty-seven thousand, eight hundred twelve".