28327816 has 32 divisors (see below), whose sum is σ = 58150080. Its totient is φ = 12830400.

The previous prime is 28327813. The next prime is 28327823. The reversal of 28327816 is 61872382.

It is not an unprimeable number, because it can be changed into a prime (28327813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42526 + ... + 43186.

It is an arithmetic number, because the mean of its divisors is an integer number (1817190).

Almost surely, 2^28327816 is an apocalyptic number.

It is an amenable number.

28327816 is an abundant number, since it is smaller than the sum of its proper divisors (29822264).

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

28327816 is a wasteful number, since it uses less digits than its factorization.

28327816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1161 counting only the distinct ones).

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

The square root of 28327816 is about 5322.3881857677. The cubic root of 28327816 is about 304.8393528273.

It can be divided in two parts, 2832 and 7816, that added together give a cube (10648 = 22³).

The spelling of 28327816 in words is "twenty-eight million, three hundred twenty-seven thousand, eight hundred sixteen".