28266708 has 12 divisors (see below), whose sum is σ = 65955680. Its totient is φ = 9422232.

The previous prime is 28266703. The next prime is 28266713. The reversal of 28266708 is 80766282.

It is an interprime number because it is at equal distance from previous prime (28266703) and next prime (28266713).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28266703) 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 3 ways as a sum of consecutive naturals, for example, 1177768 + ... + 1177791.

Almost surely, 2^28266708 is an apocalyptic number.

It is an amenable number.

28266708 is an abundant number, since it is smaller than the sum of its proper divisors (37688972).

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

28266708 is a wasteful number, since it uses less digits than its factorization.

28266708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355566 (or 2355564 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28266708 is about 5316.6444304655. The cubic root of 28266708 is about 304.6199979484.

The spelling of 28266708 in words is "twenty-eight million, two hundred sixty-six thousand, seven hundred eight".