89699 has 4 divisors (see below), whose sum is σ = 94440. Its totient is φ = 84960.
The previous prime is 89689. The next prime is 89753. The reversal of 89699 is 99698.
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 89699 - 28 = 89443 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (89659) 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, 2342 + ... + 2379.
It is an arithmetic number, because the mean of its divisors is an integer number (23610).
289699 is an apocalyptic number.
89699 is a deficient number, since it is larger than the sum of its proper divisors (4741).
89699 is a wasteful number, since it uses less digits than its factorization.
89699 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4740.
The product of its digits is 34992, while the sum is 41.
The square root of 89699 is about 299.4979131814. The cubic root of 89699 is about 44.7640323024.
Subtracting 89699 from its reverse (99698), we obtain a palindrome (9999).
The spelling of 89699 in words is "eighty-nine thousand, six hundred ninety-nine".
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