28027716 has 24 divisors (see below), whose sum is σ = 65538144. Its totient is φ = 9322560.

The previous prime is 28027711. The next prime is 28027739. The reversal of 28027716 is 61772082.

28027716 = T₃₁ + T₃₂ + ... + T₅₅₁.

It is not an unprimeable number, because it can be changed into a prime (28027711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4011 + ... + 8493.

It is an arithmetic number, because the mean of its divisors is an integer number (2730756).

Almost surely, 2^28027716 is an apocalyptic number.

It is an amenable number.

28027716 is an abundant number, since it is smaller than the sum of its proper divisors (37510428).

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

28027716 is a wasteful number, since it uses less digits than its factorization.

28027716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 28027716 is about 5294.1208901951. The cubic root of 28027716 is about 303.7590571229.

Adding to 28027716 its reverse (61772082), we get a palindrome (89799798).

The spelling of 28027716 in words is "twenty-eight million, twenty-seven thousand, seven hundred sixteen".