28518027 has 8 divisors (see below), whose sum is σ = 40260816. Its totient is φ = 17893632.

The previous prime is 28518013. The next prime is 28518043. The reversal of 28518027 is 72081582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28518027 - 2⁷ = 28517899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28518227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279538 + ... + 279639.

It is an arithmetic number, because the mean of its divisors is an integer number (5032602).

Almost surely, 2^28518027 is an apocalyptic number.

28518027 is a deficient number, since it is larger than the sum of its proper divisors (11742789).

28518027 is a wasteful number, since it uses less digits than its factorization.

28518027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559197.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 28518027 is about 5340.2272423559. The cubic root of 28518027 is about 305.5201265711.

It can be divided in two parts, 2851 and 8027, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 28518027 in words is "twenty-eight million, five hundred eighteen thousand, twenty-seven".