28179712 has 36 divisors (see below), whose sum is σ = 61369056. Its totient is φ = 12807680.

The previous prime is 28179653. The next prime is 28179733. The reversal of 28179712 is 21797182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (1704696).

Almost surely, 2^28179712 is an apocalyptic number.

28179712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28179712 is an abundant number, since it is smaller than the sum of its proper divisors (33189344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28179712 is a wasteful number, since it uses less digits than its factorization.

28179712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034 (or 10020 counting only the distinct ones).

The product of its digits is 14112, while the sum is 37.

The square root of 28179712 is about 5308.4566495357. The cubic root of 28179712 is about 304.3071687493.

The spelling of 28179712 in words is "twenty-eight million, one hundred seventy-nine thousand, seven hundred twelve".