99000089 has 4 divisors (see below), whose sum is σ = 104210640. Its totient is φ = 93789540.

The previous prime is 99000079. The next prime is 99000101. The reversal of 99000089 is 98000099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98000099 = 61 ⋅1606559.

It is a cyclic number.

It is not a de Polignac number, because 99000089 - 2¹² = 98995993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99000029) 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, 2605247 + ... + 2605284.

It is an arithmetic number, because the mean of its divisors is an integer number (26052660).

Almost surely, 2^99000089 is an apocalyptic number.

It is an amenable number.

99000089 is a deficient number, since it is larger than the sum of its proper divisors (5210551).

99000089 is a wasteful number, since it uses less digits than its factorization.

99000089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210550.

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

The square root of 99000089 is about 9949.8788434835. The cubic root of 99000089 is about 462.6066395444.

The spelling of 99000089 in words is "ninety-nine million, eighty-nine", and thus it is an aban number and an uban number.