28855363 has 6 divisors (see below), whose sum is σ = 30165044. Its totient is φ = 27600276.

The previous prime is 28855297. The next prime is 28855381. The reversal of 28855363 is 36355882.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-28855363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28855163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26745 + ... + 27802.

Almost surely, 2^28855363 is an apocalyptic number.

28855363 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28855363 is a deficient number, since it is larger than the sum of its proper divisors (1309681).

28855363 is an equidigital number, since it uses as much as digits as its factorization.

28855363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54593 (or 54570 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 28855363 is about 5371.7188124473. The cubic root of 28855363 is about 306.7200601476.

The spelling of 28855363 in words is "twenty-eight million, eight hundred fifty-five thousand, three hundred sixty-three".