28494863 has 8 divisors (see below), whose sum is σ = 29053440. Its totient is φ = 27941760.

The previous prime is 28494833. The next prime is 28494881. The reversal of 28494863 is 36849482.

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 28494863 - 2¹⁸ = 28232719 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 (28494833) 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, 10043 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (3631680).

Almost surely, 2^28494863 is an apocalyptic number.

28494863 is a deficient number, since it is larger than the sum of its proper divisors (558577).

28494863 is a wasteful number, since it uses less digits than its factorization.

28494863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737.

The product of its digits is 331776, while the sum is 44.

The square root of 28494863 is about 5338.0579802022. The cubic root of 28494863 is about 305.4373837594.

It can be divided in two parts, 2849486 and 3, that multiplied together give a palindrome (8548458).

The spelling of 28494863 in words is "twenty-eight million, four hundred ninety-four thousand, eight hundred sixty-three".