8919 has 6 divisors (see below), whose sum is σ = 12896. Its totient is φ = 5940.
The previous prime is 8893. The next prime is 8923. The reversal of 8919 is 9198.
It is not a de Polignac number, because 8919 - 25 = 8887 is a prime.
It is a super-2 number, since 2×89192 = 159097122, which contains 22 as substring.
It is a Duffinian number.
It is a plaindrome in base 11 and base 15.
It is a junction number, because it is equal to n+sod(n) for n = 8892 and 8901.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8929) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 487 + ... + 504.
28919 is an apocalyptic number.
8919 is a deficient number, since it is larger than the sum of its proper divisors (3977).
8919 is a wasteful number, since it uses less digits than its factorization.
8919 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 997 (or 994 counting only the distinct ones).
The product of its digits is 648, while the sum is 27.
The square root of 8919 is about 94.4404574322. The cubic root of 8919 is about 20.7382475666.
It can be divided in two parts, 891 and 9, that added together give a square (900 = 302).
The spelling of 8919 in words is "eight thousand, nine hundred nineteen".
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