28859768 has 32 divisors (see below), whose sum is σ = 62146560. Its totient is φ = 12307680.

The previous prime is 28859759. The next prime is 28859783. The reversal of 28859768 is 86795882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11333 + ... + 13643.

It is an arithmetic number, because the mean of its divisors is an integer number (1942080).

Almost surely, 2^28859768 is an apocalyptic number.

28859768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28859768 is an abundant number, since it is smaller than the sum of its proper divisors (33286792).

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

28859768 is a wasteful number, since it uses less digits than its factorization.

28859768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547 (or 2543 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The square root of 28859768 is about 5372.1288145390. The cubic root of 28859768 is about 306.7356671033.

The spelling of 28859768 in words is "twenty-eight million, eight hundred fifty-nine thousand, seven hundred sixty-eight".