28825316 has 18 divisors (see below), whose sum is σ = 54624402. Its totient is φ = 13303680.

The previous prime is 28825309. The next prime is 28825327. The reversal of 28825316 is 61352882.

It can be written as a sum of positive squares in 3 ways, for example, as 160000 + 28665316 = 400^2 + 5354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20645 + ... + 21996.

It is an arithmetic number, because the mean of its divisors is an integer number (3034689).

Almost surely, 2^28825316 is an apocalyptic number.

28825316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28825316 is a deficient number, since it is larger than the sum of its proper divisors (25799086).

28825316 is a wasteful number, since it uses less digits than its factorization.

28825316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42671 (or 42656 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 28825316 is about 5368.9213069294. The cubic root of 28825316 is about 306.6135609575.

The spelling of 28825316 in words is "twenty-eight million, eight hundred twenty-five thousand, three hundred sixteen".