28044063 has 10 divisors (see below), whose sum is σ = 41893104. Its totient is φ = 18695988.

The previous prime is 28044059. The next prime is 28044103. The reversal of 28044063 is 36044082.

It is not a de Polignac number, because 28044063 - 2² = 28044059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28044043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 173031 + ... + 173192.

Almost surely, 2^28044063 is an apocalyptic number.

28044063 is a deficient number, since it is larger than the sum of its proper divisors (13849041).

28044063 is an equidigital number, since it uses as much as digits as its factorization.

28044063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346235 (or 346226 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 28044063 is about 5295.6645475332. The cubic root of 28044063 is about 303.8181008714.

The spelling of 28044063 in words is "twenty-eight million, forty-four thousand, sixty-three".