28065267 has 12 divisors (see below), whose sum is σ = 42301584. Its totient is φ = 17896560.

The previous prime is 28065259. The next prime is 28065269. The reversal of 28065267 is 76256082.

It is not a de Polignac number, because 28065267 - 2³ = 28065259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28065269) 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, 67584 + ... + 67997.

It is an arithmetic number, because the mean of its divisors is an integer number (3525132).

Almost surely, 2^28065267 is an apocalyptic number.

28065267 is a deficient number, since it is larger than the sum of its proper divisors (14236317).

28065267 is a wasteful number, since it uses less digits than its factorization.

28065267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135610 (or 135607 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 28065267 is about 5297.6661842740. Note that the first 3 decimals coincide. The cubic root of 28065267 is about 303.8946534507.

The spelling of 28065267 in words is "twenty-eight million, sixty-five thousand, two hundred sixty-seven".