28018463 has 8 divisors (see below), whose sum is σ = 30837456. Its totient is φ = 25244800.

The previous prime is 28018447. The next prime is 28018469. The reversal of 28018463 is 36481082.

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

It is a cyclic number.

It is not a de Polignac number, because 28018463 - 2⁴ = 28018447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28018469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10028 + ... + 12513.

It is an arithmetic number, because the mean of its divisors is an integer number (3854682).

Almost surely, 2^28018463 is an apocalyptic number.

28018463 is a deficient number, since it is larger than the sum of its proper divisors (2818993).

28018463 is a wasteful number, since it uses less digits than its factorization.

28018463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22665.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 28018463 is about 5293.2469241478. The cubic root of 28018463 is about 303.7256260255.

The spelling of 28018463 in words is "twenty-eight million, eighteen thousand, four hundred sixty-three".