28683567 has 12 divisors (see below), whose sum is σ = 45198504. Its totient is φ = 17383920.

The previous prime is 28683541. The next prime is 28683601. The reversal of 28683567 is 76538682.

28683567 is a `hidden beast` number, since 2 + 8 + 6 + 83 + 567 = 666.

It is not a de Polignac number, because 28683567 - 2⁷ = 28683439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28683517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144768 + ... + 144965.

It is an arithmetic number, because the mean of its divisors is an integer number (3766542).

Almost surely, 2^28683567 is an apocalyptic number.

28683567 is a deficient number, since it is larger than the sum of its proper divisors (16514937).

28683567 is a wasteful number, since it uses less digits than its factorization.

28683567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289750 (or 289747 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 28683567 is about 5355.7041553842. The cubic root of 28683567 is about 306.1101423317.

The spelling of 28683567 in words is "twenty-eight million, six hundred eighty-three thousand, five hundred sixty-seven".