28247067 has 6 divisors (see below), whose sum is σ = 40801332. Its totient is φ = 18831372.

The previous prime is 28247033. The next prime is 28247069. The reversal of 28247067 is 76074282.

It is not a de Polignac number, because 28247067 - 2⁸ = 28246811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28247069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1569273 + ... + 1569290.

It is an arithmetic number, because the mean of its divisors is an integer number (6800222).

Almost surely, 2^28247067 is an apocalyptic number.

28247067 is a deficient number, since it is larger than the sum of its proper divisors (12554265).

28247067 is a wasteful number, since it uses less digits than its factorization.

28247067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138569 (or 3138566 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 28247067 is about 5314.7969857747. The cubic root of 28247067 is about 304.5494269705.

The spelling of 28247067 in words is "twenty-eight million, two hundred forty-seven thousand, sixty-seven".