28695816 has 32 divisors (see below), whose sum is σ = 79711200. Its totient is φ = 9565200.

The previous prime is 28695811. The next prime is 28695829. The reversal of 28695816 is 61859682.

28695816 is a `hidden beast` number, since 2 + 8 + 69 + 581 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (28695811) by changing a digit.

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, 66210 + ... + 66641.

It is an arithmetic number, because the mean of its divisors is an integer number (2490975).

Almost surely, 2^28695816 is an apocalyptic number.

It is an amenable number.

28695816 is an abundant number, since it is smaller than the sum of its proper divisors (51015384).

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

28695816 is a wasteful number, since it uses less digits than its factorization.

28695816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132866 (or 132856 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 28695816 is about 5356.8475804339. The cubic root of 28695816 is about 306.1537097806.

The spelling of 28695816 in words is "twenty-eight million, six hundred ninety-five thousand, eight hundred sixteen".