28716832 has 12 divisors (see below), whose sum is σ = 56536326. Its totient is φ = 14358400.

The previous prime is 28716827. The next prime is 28716833. The reversal of 28716832 is 23861782.

It can be written as a sum of positive squares in only one way, i.e., 28259856 + 456976 = 5316^2 + 676^2 .

It is a pancake number, because a pancake can be divided into 28716832 parts by 7578 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 28716791 and 28716800.

It is not an unprimeable number, because it can be changed into a prime (28716833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448669 + ... + 448732.

Almost surely, 2^28716832 is an apocalyptic number.

It is an amenable number.

28716832 is a deficient number, since it is larger than the sum of its proper divisors (27819494).

28716832 is an equidigital number, since it uses as much as digits as its factorization.

28716832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897411 (or 897403 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 28716832 is about 5358.8088228635. The cubic root of 28716832 is about 306.2284309674.

The spelling of 28716832 in words is "twenty-eight million, seven hundred sixteen thousand, eight hundred thirty-two".