28475924 has 12 divisors (see below), whose sum is σ = 49870548. Its totient is φ = 14227200.

The previous prime is 28475917. The next prime is 28475963. The reversal of 28475924 is 42957482.

It can be written as a sum of positive squares in 2 ways, for example, as 24403600 + 4072324 = 4940^2 + 2018^2 .

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, 7844 + ... + 10884.

It is an arithmetic number, because the mean of its divisors is an integer number (4155879).

Almost surely, 2^28475924 is an apocalyptic number.

It is an amenable number.

28475924 is a deficient number, since it is larger than the sum of its proper divisors (21394624).

28475924 is a wasteful number, since it uses less digits than its factorization.

28475924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386 (or 5384 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 28475924 is about 5336.2837255903. The cubic root of 28475924 is about 305.3696995050.

The spelling of 28475924 in words is "twenty-eight million, four hundred seventy-five thousand, nine hundred twenty-four".