28516712 has 16 divisors (see below), whose sum is σ = 61107360. Its totient is φ = 12221424.

The previous prime is 28516699. The next prime is 28516717. The reversal of 28516712 is 21761582.

It is not an unprimeable number, because it can be changed into a prime (28516717) by changing a digit.

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, 254558 + ... + 254669.

It is an arithmetic number, because the mean of its divisors is an integer number (3819210).

Almost surely, 2^28516712 is an apocalyptic number.

It is an amenable number.

28516712 is an abundant number, since it is smaller than the sum of its proper divisors (32590648).

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

28516712 is a wasteful number, since it uses less digits than its factorization.

28516712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509240 (or 509236 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 28516712 is about 5340.1041188351. The cubic root of 28516712 is about 305.5154305340.

The spelling of 28516712 in words is "twenty-eight million, five hundred sixteen thousand, seven hundred twelve".