89099 has 4 divisors (see below), whose sum is σ = 89880. Its totient is φ = 88320.

The previous prime is 89087. The next prime is 89101. The reversal of 89099 is 99098.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99098 = 2 ⋅49549.

It is a cyclic number.

It is not a de Polignac number, because 89099 - 2⁴ = 89083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89009) 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, 182 + ... + 459.

It is an arithmetic number, because the mean of its divisors is an integer number (22470).

2⁸⁹⁰⁹⁹ is an apocalyptic number.

89099 is a deficient number, since it is larger than the sum of its proper divisors (781).

89099 is a wasteful number, since it uses less digits than its factorization.

89099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 89099 is about 298.4945560643. The cubic root of 89099 is about 44.6639994942.

Subtracting 89099 from its reverse (99098), we obtain a palindrome (9999).

It can be divided in two parts, 890 and 99, that added together give a palindrome (989).

The spelling of 89099 in words is "eighty-nine thousand, ninety-nine".