28769267 has 2 divisors, whose sum is σ = 28769268. Its totient is φ = 28769266.

The previous prime is 28769261. The next prime is 28769291. The reversal of 28769267 is 76296782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28769267 - 2⁶ = 28769203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28769261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14384633 + 14384634.

It is an arithmetic number, because the mean of its divisors is an integer number (14384634).

Almost surely, 2^28769267 is an apocalyptic number.

28769267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28769267 is an equidigital number, since it uses as much as digits as its factorization.

28769267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 28769267 is about 5363.6990034863. The cubic root of 28769267 is about 306.4147018001.

The spelling of 28769267 in words is "twenty-eight million, seven hundred sixty-nine thousand, two hundred sixty-seven".