89202009 has 32 divisors (see below), whose sum is σ = 137337984. Its totient is φ = 51010560.

The previous prime is 89201989. The next prime is 89202013. The reversal of 89202009 is 90020298.

It is not a de Polignac number, because 89202009 - 2¹¹ = 89199961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89202109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54219 + ... + 55839.

It is an arithmetic number, because the mean of its divisors is an integer number (4291812).

Almost surely, 2^89202009 is an apocalyptic number.

It is an amenable number.

89202009 is a deficient number, since it is larger than the sum of its proper divisors (48135975).

89202009 is a wasteful number, since it uses less digits than its factorization.

89202009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 89202009 is about 9444.6815192467. The cubic root of 89202009 is about 446.8120515698.

The spelling of 89202009 in words is "eighty-nine million, two hundred two thousand, nine".