28472824 has 16 divisors (see below), whose sum is σ = 56527200. Its totient is φ = 13398912.

The previous prime is 28472813. The next prime is 28472831. The reversal of 28472824 is 42827482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104544 + ... + 104815.

It is an arithmetic number, because the mean of its divisors is an integer number (3532950).

Almost surely, 2^28472824 is an apocalyptic number.

It is an amenable number.

28472824 is a deficient number, since it is larger than the sum of its proper divisors (28054376).

28472824 is a wasteful number, since it uses less digits than its factorization.

28472824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209382 (or 209378 counting only the distinct ones).

The product of its digits is 57344, while the sum is 37.

The square root of 28472824 is about 5335.9932533690. The cubic root of 28472824 is about 305.3586178579.

It can be divided in two parts, 2847 and 2824, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 28472824 in words is "twenty-eight million, four hundred seventy-two thousand, eight hundred twenty-four".