9000861 has 8 divisors (see below), whose sum is σ = 12118080. Its totient is φ = 5942112.

The previous prime is 9000841. The next prime is 9000877. The reversal of 9000861 is 1680009.

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

It is not a de Polignac number, because 9000861 - 2⁹ = 9000349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000821) 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 7 ways as a sum of consecutive naturals, for example, 14256 + ... + 14873.

It is an arithmetic number, because the mean of its divisors is an integer number (1514760).

Almost surely, 2^9000861 is an apocalyptic number.

It is an amenable number.

9000861 is a deficient number, since it is larger than the sum of its proper divisors (3117219).

9000861 is a wasteful number, since it uses less digits than its factorization.

9000861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29235.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 9000861 is about 3000.1434965681. The cubic root of 9000861 is about 208.0150152499.

The spelling of 9000861 in words is "nine million, eight hundred sixty-one", and thus it is an aban number.