28043463 has 16 divisors (see below), whose sum is σ = 44591616. Its totient is φ = 15327840.

The previous prime is 28043441. The next prime is 28043471. The reversal of 28043463 is 36434082.

It is not a de Polignac number, because 28043463 - 2⁸ = 28043207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28043463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28043423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28548 + ... + 29513.

It is an arithmetic number, because the mean of its divisors is an integer number (2786976).

Almost surely, 2^28043463 is an apocalyptic number.

28043463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28043463 is a deficient number, since it is larger than the sum of its proper divisors (16548153).

28043463 is a wasteful number, since it uses less digits than its factorization.

28043463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58094.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 28043463 is about 5295.6078971163. The cubic root of 28043463 is about 303.8159341364.

The spelling of 28043463 in words is "twenty-eight million, forty-three thousand, four hundred sixty-three".