28534928 has 20 divisors (see below), whose sum is σ = 55369968. Its totient is φ = 14245920.

The previous prime is 28534901. The next prime is 28534931. The reversal of 28534928 is 82943582.

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, 17975 + ... + 19497.

Almost surely, 2^28534928 is an apocalyptic number.

It is an amenable number.

28534928 is a deficient number, since it is larger than the sum of its proper divisors (26835040).

28534928 is a wasteful number, since it uses less digits than its factorization.

28534928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 2696 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 28534928 is about 5341.8094312695. The cubic root of 28534928 is about 305.5804694078.

The spelling of 28534928 in words is "twenty-eight million, five hundred thirty-four thousand, nine hundred twenty-eight".