28266067 has 4 divisors (see below), whose sum is σ = 28469560. Its totient is φ = 28062576.

The previous prime is 28266061. The next prime is 28266107. The reversal of 28266067 is 76066282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76066282 = 2 ⋅38033141.

It is a cyclic number.

It is not a de Polignac number, because 28266067 - 2³ = 28266059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28266061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101538 + ... + 101815.

It is an arithmetic number, because the mean of its divisors is an integer number (7117390).

Almost surely, 2^28266067 is an apocalyptic number.

28266067 is a deficient number, since it is larger than the sum of its proper divisors (203493).

28266067 is a wasteful number, since it uses less digits than its factorization.

28266067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203492.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 28266067 is about 5316.5841477400. The cubic root of 28266067 is about 304.6176953233.

The spelling of 28266067 in words is "twenty-eight million, two hundred sixty-six thousand, sixty-seven".