28767576 has 32 divisors (see below), whose sum is σ = 72092160. Its totient is φ = 9566112.

The previous prime is 28767569. The next prime is 28767601. The reversal of 28767576 is 67576782.

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, 10881 + ... + 13263.

It is an arithmetic number, because the mean of its divisors is an integer number (2252880).

Almost surely, 2^28767576 is an apocalyptic number.

It is an amenable number.

28767576 is an abundant number, since it is smaller than the sum of its proper divisors (43324584).

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

28767576 is a wasteful number, since it uses less digits than its factorization.

28767576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895 (or 2891 counting only the distinct ones).

The product of its digits is 987840, while the sum is 48.

The square root of 28767576 is about 5363.5413674176. The cubic root of 28767576 is about 306.4086982013.

It can be divided in two parts, 2 and 8767576, that added together give a triangular number (8767578 = T₄₁₈₇).

The spelling of 28767576 in words is "twenty-eight million, seven hundred sixty-seven thousand, five hundred seventy-six".