28566768 has 20 divisors (see below), whose sum is σ = 73797608. Its totient is φ = 9522240.

The previous prime is 28566767. The next prime is 28566793. The reversal of 28566768 is 86766582.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 595141 = 28566768 / (2 + 8 + 5 + 6 + 6 + 7 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28566761) 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, 297523 + ... + 297618.

Almost surely, 2^28566768 is an apocalyptic number.

It is an amenable number.

28566768 is an abundant number, since it is smaller than the sum of its proper divisors (45230840).

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

28566768 is a wasteful number, since it uses less digits than its factorization.

28566768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595152 (or 595146 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 28566768 is about 5344.7888639309. The cubic root of 28566768 is about 305.6940853187.

The spelling of 28566768 in words is "twenty-eight million, five hundred sixty-six thousand, seven hundred sixty-eight".