28727672 has 16 divisors (see below), whose sum is σ = 53967600. Its totient is φ = 14336320.

The previous prime is 28727623. The next prime is 28727683. The reversal of 28727672 is 27672782.

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, 1397 + ... + 7707.

It is an arithmetic number, because the mean of its divisors is an integer number (3372975).

Almost surely, 2^28727672 is an apocalyptic number.

It is an amenable number.

28727672 is a deficient number, since it is larger than the sum of its proper divisors (25239928).

28727672 is a wasteful number, since it uses less digits than its factorization.

28727672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6882 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 28727672 is about 5359.8201462363. The cubic root of 28727672 is about 306.2669577171.

The spelling of 28727672 in words is "twenty-eight million, seven hundred twenty-seven thousand, six hundred seventy-two".