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8899 = 11809

8899 has 4 divisors (see below), whose sum is σ = 9720. Its totient is φ = 8080.

The previous prime is 8893. The next prime is 8923. The reversal of 8899 is 9988.

Subtracting 8899 from its reverse (9988), we obtain a square (1089 = 332).

It can be divided in two parts, 889 and 9, that multiplied together give a triangular number (8001 = T126).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8899 - 25 = 8867 is a prime.

It is a Duffinian number.

8899 is a modest number, since divided by 99 gives 88 as remainder.

It is a plaindrome in base 10 and base 14.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394 + ... + 415.

It is an arithmetic number, because the mean of its divisors is an integer number (2430).

28899 is an apocalyptic number.

8899 is a deficient number, since it is larger than the sum of its proper divisors (821).

8899 is a wasteful number, since it uses less digits than its factorization.

8899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its digits is 5184, while the sum is 34.

The square root of 8899 is about 94.3345111823. The cubic root of 8899 is about 20.7227347901.

The spelling of 8899 in words is "eight thousand, eight hundred ninety-nine".

Divisors: 1 11 809 8899