28567267 has 2 divisors, whose sum is σ = 28567268. Its totient is φ = 28567266.

The previous prime is 28567247. The next prime is 28567277. The reversal of 28567267 is 76276582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28567267 is a prime.

It is not a weakly prime, because it can be changed into another prime (28567247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283633 + 14283634.

It is an arithmetic number, because the mean of its divisors is an integer number (14283634).

Almost surely, 2^28567267 is an apocalyptic number.

28567267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28567267 is an equidigital number, since it uses as much as digits as its factorization.

28567267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 28567267 is about 5344.8355447104. The cubic root of 28567267 is about 305.6958652478.

The spelling of 28567267 in words is "twenty-eight million, five hundred sixty-seven thousand, two hundred sixty-seven".