89089 has 16 divisors (see below), whose sum is σ = 120960. Its totient is φ = 63360.
The previous prime is 89087. The next prime is 89101. The reversal of 89089 is 98098.
It is not a de Polignac number, because 89089 - 21 = 89087 is a prime.
It is an Ulam number.
It is a plaindrome in base 14.
It is not an unprimeable number, because it can be changed into a prime (89083) 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, 957 + ... + 1045.
It is an arithmetic number, because the mean of its divisors is an integer number (7560).
It is a Proth number, since it is equal to 87 ⋅ 210 + 1 and 87 < 210.
289089 is an apocalyptic number.
89089 is a gapful number since it is divisible by the number (89) formed by its first and last digit.
It is an amenable number.
89089 is a deficient number, since it is larger than the sum of its proper divisors (31871).
89089 is a wasteful number, since it uses less digits than its factorization.
89089 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120.
The product of its (nonzero) digits is 5184, while the sum is 34.
The square root of 89089 is about 298.4778048700. The cubic root of 89089 is about 44.6623284814.
Subtracting 89089 from its reverse (98098), we obtain a palindrome (9009).
It can be divided in two parts, 890 and 89, that added together give a palindrome (979).
The spelling of 89089 in words is "eighty-nine thousand, eighty-nine".
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