9081989 has 8 divisors (see below), whose sum is σ = 10475520. Its totient is φ = 7712496.

The previous prime is 9081973. The next prime is 9081991. The reversal of 9081989 is 9891809.

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 9081989 - 2⁴ = 9081973 is a prime.

It is a super-2 number, since 2×9081989² = 164965048392242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9081949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5189 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (1309440).

Almost surely, 2^9081989 is an apocalyptic number.

It is an amenable number.

9081989 is a deficient number, since it is larger than the sum of its proper divisors (1393531).

9081989 is a wasteful number, since it uses less digits than its factorization.

9081989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 9081989 is about 3013.6338530087. The cubic root of 9081989 is about 208.6381183008.

The spelling of 9081989 in words is "nine million, eighty-one thousand, nine hundred eighty-nine".