28715876 has 24 divisors (see below), whose sum is σ = 57825600. Its totient is φ = 12222432.

The previous prime is 28715849. The next prime is 28715909. The reversal of 28715876 is 67851782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 7613.

It is an arithmetic number, because the mean of its divisors is an integer number (2409400).

Almost surely, 2^28715876 is an apocalyptic number.

It is an amenable number.

28715876 is an abundant number, since it is smaller than the sum of its proper divisors (29109724).

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

28715876 is a wasteful number, since it uses less digits than its factorization.

28715876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043 (or 7041 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 28715876 is about 5358.7196231936. The cubic root of 28715876 is about 306.2250327556.

The spelling of 28715876 in words is "twenty-eight million, seven hundred fifteen thousand, eight hundred seventy-six".