89428028 has 12 divisors (see below), whose sum is σ = 159829152. Its totient is φ = 43762560.

The previous prime is 89428019. The next prime is 89428039. The reversal of 89428028 is 82082498.

It is a congruent number.

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, 237653 + ... + 238028.

It is an arithmetic number, because the mean of its divisors is an integer number (13319096).

Almost surely, 2^89428028 is an apocalyptic number.

It is an amenable number.

89428028 is a deficient number, since it is larger than the sum of its proper divisors (70401124).

89428028 is a wasteful number, since it uses less digits than its factorization.

89428028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475732 (or 475730 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 89428028 is about 9456.6393607877. The cubic root of 89428028 is about 447.1891089926.

The spelling of 89428028 in words is "eighty-nine million, four hundred twenty-eight thousand, twenty-eight".