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8872 = 231109
BaseRepresentation
bin10001010101000
3110011121
42022220
5240442
6105024
734603
oct21250
913147
108872
116736
125174
134066
14333a
152967
hex22a8

8872 has 8 divisors (see below), whose sum is σ = 16650. Its totient is φ = 4432.

The previous prime is 8867. The next prime is 8887. The reversal of 8872 is 2788.

It can be written as a sum of positive squares in only one way, i.e., 8836 + 36 = 94^2 + 6^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is an unprimeable number.

8872 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547 + ... + 562.

28872 is an apocalyptic number.

It is an amenable number.

8872 is a deficient number, since it is larger than the sum of its proper divisors (7778).

8872 is a wasteful number, since it uses less digits than its factorization.

8872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1111 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 8872 is about 94.1912947145. The cubic root of 8872 is about 20.7017556291.

Subtracting from 8872 its reverse (2788), we obtain a square (6084 = 782).

It can be divided in two parts, 88 and 72, that multiplied together give a palindrome (6336).

The spelling of 8872 in words is "eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 1109 2218 4436 8872