9009818 has 8 divisors (see below), whose sum is σ = 13589940. Its totient is φ = 4479840.

The previous prime is 9009811. The next prime is 9009827. The reversal of 9009818 is 8189009.

It is a happy number.

9009818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5257849 + 3751969 = 2293^2 + 1937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9009811) 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, 12083 + ... + 12806.

Almost surely, 2^9009818 is an apocalyptic number.

9009818 is a deficient number, since it is larger than the sum of its proper divisors (4580122).

9009818 is a wasteful number, since it uses less digits than its factorization.

9009818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25072.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 9009818 is about 3001.6358873121. The cubic root of 9009818 is about 208.0839928286.

The spelling of 9009818 in words is "nine million, nine thousand, eight hundred eighteen".