909000085 has 32 divisors (see below), whose sum is σ = 1277233920. Its totient is φ = 608145408.

The previous prime is 909000083. The next prime is 909000121. The reversal of 909000085 is 580000909.

It is a cyclic number.

It is not a de Polignac number, because 909000085 - 2¹ = 909000083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909000083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356746 + ... + 359284.

It is an arithmetic number, because the mean of its divisors is an integer number (39913560).

Almost surely, 2^909000085 is an apocalyptic number.

It is an amenable number.

909000085 is a deficient number, since it is larger than the sum of its proper divisors (368233835).

909000085 is a wasteful number, since it uses less digits than its factorization.

909000085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 909000085 is about 30149.6282729987. The cubic root of 909000085 is about 968.6970442922.

The spelling of 909000085 in words is "nine hundred nine million, eighty-five", and thus it is an aban number.