28045267 has 2 divisors, whose sum is σ = 28045268. Its totient is φ = 28045266.

The previous prime is 28045261. The next prime is 28045279. The reversal of 28045267 is 76254082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28045267 - 2¹⁹ = 27520979 is a prime.

It is a super-2 number, since 2×28045267² = 1573074002202578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28045261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14022633 + 14022634.

It is an arithmetic number, because the mean of its divisors is an integer number (14022634).

Almost surely, 2^28045267 is an apocalyptic number.

28045267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28045267 is an equidigital number, since it uses as much as digits as its factorization.

28045267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28045267 is about 5295.7782242084. The cubic root of 28045267 is about 303.8224486932.

The spelling of 28045267 in words is "twenty-eight million, forty-five thousand, two hundred sixty-seven".