28008768 has 28 divisors (see below), whose sum is σ = 74107040. Its totient is φ = 9336192.

The previous prime is 28008767. The next prime is 28008769. The reversal of 28008768 is 86780082.

It is an interprime number because it is at equal distance from previous prime (28008767) and next prime (28008769).

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 (28008763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72748 + ... + 73131.

It is an arithmetic number, because the mean of its divisors is an integer number (2646680).

Almost surely, 2^28008768 is an apocalyptic number.

It is an amenable number.

28008768 is an abundant number, since it is smaller than the sum of its proper divisors (46098272).

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

28008768 is a wasteful number, since it uses less digits than its factorization.

28008768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145894 (or 145884 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 28008768 is about 5292.3310554046. The cubic root of 28008768 is about 303.6905900845.

The spelling of 28008768 in words is "twenty-eight million, eight thousand, seven hundred sixty-eight".