89006209 has 4 divisors (see below), whose sum is σ = 89230804. Its totient is φ = 88781616.

The previous prime is 89006179. The next prime is 89006221. The reversal of 89006209 is 90260098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90260098 = 2 ⋅45130049.

It can be written as a sum of positive squares in 2 ways, for example, as 56550400 + 32455809 = 7520^2 + 5697^2 .

It is a cyclic number.

It is not a de Polignac number, because 89006209 - 2²¹ = 86909057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89006609) 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, 111702 + ... + 112495.

It is an arithmetic number, because the mean of its divisors is an integer number (22307701).

Almost surely, 2^89006209 is an apocalyptic number.

It is an amenable number.

89006209 is a deficient number, since it is larger than the sum of its proper divisors (224595).

89006209 is a wasteful number, since it uses less digits than its factorization.

89006209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224594.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 89006209 is about 9434.3102026592. The cubic root of 89006209 is about 446.4848919396.

The spelling of 89006209 in words is "eighty-nine million, six thousand, two hundred nine".