28884068 has 6 divisors (see below), whose sum is σ = 50547126. Its totient is φ = 14442032.

The previous prime is 28884017. The next prime is 28884073. The reversal of 28884068 is 86048882.

It can be written as a sum of positive squares in only one way, i.e., 28815424 + 68644 = 5368^2 + 262^2 .

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 as a sum of consecutive naturals, namely, 3610505 + ... + 3610512.

It is an arithmetic number, because the mean of its divisors is an integer number (8424521).

Almost surely, 2^28884068 is an apocalyptic number.

It is an amenable number.

28884068 is a deficient number, since it is larger than the sum of its proper divisors (21663058).

28884068 is a wasteful number, since it uses less digits than its factorization.

28884068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221021 (or 7221019 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 28884068 is about 5374.3900118990. The cubic root of 28884068 is about 306.8217336959.

The spelling of 28884068 in words is "twenty-eight million, eight hundred eighty-four thousand, sixty-eight".