28538267 has 2 divisors, whose sum is σ = 28538268. Its totient is φ = 28538266.

The previous prime is 28538243. The next prime is 28538281. The reversal of 28538267 is 76283582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28538267 - 2¹² = 28534171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28538227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14269133 + 14269134.

It is an arithmetic number, because the mean of its divisors is an integer number (14269134).

Almost surely, 2^28538267 is an apocalyptic number.

28538267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28538267 is an equidigital number, since it uses as much as digits as its factorization.

28538267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 28538267 is about 5342.1219566760. The cubic root of 28538267 is about 305.5923880570.

The spelling of 28538267 in words is "twenty-eight million, five hundred thirty-eight thousand, two hundred sixty-seven".