9000008 has 8 divisors (see below), whose sum is σ = 16875030. Its totient is φ = 4500000.

The previous prime is 8999993. The next prime is 9000011. The reversal of 9000008 is 8000009.

It can be written as a sum of positive squares in only one way, i.e., 7963684 + 1036324 = 2822^2 + 1018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 9000008.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562493 + ... + 562508.

Almost surely, 2^9000008 is an apocalyptic number.

It is an amenable number.

9000008 is a deficient number, since it is larger than the sum of its proper divisors (7875022).

9000008 is a wasteful number, since it uses less digits than its factorization.

9000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125007 (or 1125003 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 9000008 is about 3000.0013333330. The cubic root of 9000008 is about 208.0084439373.

Subtracting from 9000008 its reverse (8000009), we obtain a palindrome (999999).

The spelling of 9000008 in words is "nine million, eight", and thus it is an aban number and an uban number.