90086909 has 8 divisors (see below), whose sum is σ = 100131552. Its totient is φ = 80351440.

The previous prime is 90086903. The next prime is 90086917. The reversal of 90086909 is 90968009.

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

It is a cyclic number.

It is not a de Polignac number, because 90086909 - 2²⁴ = 73309693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90086903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76679 + ... + 77844.

It is an arithmetic number, because the mean of its divisors is an integer number (12516444).

Almost surely, 2^90086909 is an apocalyptic number.

It is an amenable number.

90086909 is a deficient number, since it is larger than the sum of its proper divisors (10044643).

90086909 is a wasteful number, since it uses less digits than its factorization.

90086909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154587.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 90086909 is about 9491.4123817270. The cubic root of 90086909 is about 448.2846780284.

The spelling of 90086909 in words is "ninety million, eighty-six thousand, nine hundred nine".