28727016 has 16 divisors (see below), whose sum is σ = 71817600. Its totient is φ = 9575664.

The previous prime is 28726981. The next prime is 28727029. The reversal of 28727016 is 61072782.

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, 598456 + ... + 598503.

It is an arithmetic number, because the mean of its divisors is an integer number (4488600).

Almost surely, 2^28727016 is an apocalyptic number.

It is an amenable number.

28727016 is an abundant number, since it is smaller than the sum of its proper divisors (43090584).

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

28727016 is a wasteful number, since it uses less digits than its factorization.

28727016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196968 (or 1196964 counting only the distinct ones).

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

The square root of 28727016 is about 5359.7589498036. The cubic root of 28727016 is about 306.2646264845.

Adding to 28727016 its reverse (61072782), we get a palindrome (89799798).

The spelling of 28727016 in words is "twenty-eight million, seven hundred twenty-seven thousand, sixteen".