28843633 has 16 divisors (see below), whose sum is σ = 37046016. Its totient is φ = 21827520.

The previous prime is 28843627. The next prime is 28843637. The reversal of 28843633 is 33634882.

It is not a de Polignac number, because 28843633 - 2⁵ = 28843601 is a prime.

Its product of digits (82944) is a multiple of the sum of its prime divisors (13824).

It is a junction number, because it is equal to n+sod(n) for n = 28843592 and 28843601.

It is not an unprimeable number, because it can be changed into a prime (28843637) 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 15 ways as a sum of consecutive naturals, for example, 4798 + ... + 8983.

It is an arithmetic number, because the mean of its divisors is an integer number (2315376).

Almost surely, 2^28843633 is an apocalyptic number.

28843633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28843633 is a deficient number, since it is larger than the sum of its proper divisors (8202383).

28843633 is a wasteful number, since it uses less digits than its factorization.

28843633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13824.

The product of its digits is 82944, while the sum is 37.

The square root of 28843633 is about 5370.6268721631. The cubic root of 28843633 is about 306.6784929014.

The spelling of 28843633 in words is "twenty-eight million, eight hundred forty-three thousand, six hundred thirty-three".