28716016 has 20 divisors (see below), whose sum is σ = 63585712. Its totient is φ = 12306816.

The previous prime is 28716001. The next prime is 28716041. The reversal of 28716016 is 61061782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128085 + ... + 128308.

Almost surely, 2^28716016 is an apocalyptic number.

It is an amenable number.

28716016 is an abundant number, since it is smaller than the sum of its proper divisors (34869696).

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

28716016 is a wasteful number, since it uses less digits than its factorization.

28716016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256408 (or 256402 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 28716016 is about 5358.7326859996. The cubic root of 28716016 is about 306.2255304064.

Adding to 28716016 its reverse (61061782), we get a palindrome (89777798).

The spelling of 28716016 in words is "twenty-eight million, seven hundred sixteen thousand, sixteen".