28968568 has 16 divisors (see below), whose sum is σ = 55082160. Its totient is φ = 14280000.

The previous prime is 28968557. The next prime is 28968613. The reversal of 28968568 is 86586982.

It is a congruent number.

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, 24933 + ... + 26068.

It is an arithmetic number, because the mean of its divisors is an integer number (3442635).

Almost surely, 2^28968568 is an apocalyptic number.

It is an amenable number.

28968568 is a deficient number, since it is larger than the sum of its proper divisors (26113592).

28968568 is a wasteful number, since it uses less digits than its factorization.

28968568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51078 (or 51074 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 28968568 is about 5382.2456279884. The cubic root of 28968568 is about 307.1206435195.

The spelling of 28968568 in words is "twenty-eight million, nine hundred sixty-eight thousand, five hundred sixty-eight".