28455163 has 16 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 24207040.

The previous prime is 28455157. The next prime is 28455173. The reversal of 28455163 is 36155482.

It is a de Polignac number, because none of the positive numbers 2^k-28455163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28455173) 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, 10695 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^28455163 is an apocalyptic number.

28455163 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28455163 is a deficient number, since it is larger than the sum of its proper divisors (4639493).

28455163 is a wasteful number, since it uses less digits than its factorization.

28455163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474.

The product of its digits is 28800, while the sum is 34.

The square root of 28455163 is about 5334.3381032702. The cubic root of 28455163 is about 305.2954692924.

It can be divided in two parts, 2845 and 5163, that added together give a palindrome (8008).

The spelling of 28455163 in words is "twenty-eight million, four hundred fifty-five thousand, one hundred sixty-three".