28008968 has 16 divisors (see below), whose sum is σ = 56556780. Its totient is φ = 12927168.

The previous prime is 28008949. The next prime is 28008997. The reversal of 28008968 is 86980082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27646564 + 362404 = 5258^2 + 602^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134555 + ... + 134762.

Almost surely, 2^28008968 is an apocalyptic number.

It is an amenable number.

28008968 is an abundant number, since it is smaller than the sum of its proper divisors (28547812).

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

28008968 is a wasteful number, since it uses less digits than its factorization.

28008968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269336 (or 269332 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 28008968 is about 5292.3499506363. The cubic root of 28008968 is about 303.6913129293.

The spelling of 28008968 in words is "twenty-eight million, eight thousand, nine hundred sixty-eight".