9081660 has 72 divisors (see below), whose sum is σ = 29589840. Its totient is φ = 2075136.

The previous prime is 9081659. The next prime is 9081661. The reversal of 9081660 is 661809.

It is an interprime number because it is at equal distance from previous prime (9081659) and next prime (9081661).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9081661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1396 + ... + 4484.

It is an arithmetic number, because the mean of its divisors is an integer number (410970).

Almost surely, 2^9081660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9081660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14794920).

9081660 is an abundant number, since it is smaller than the sum of its proper divisors (20508180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9081660 is a wasteful number, since it uses less digits than its factorization.

9081660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3106 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 9081660 is about 3013.5792672502. The cubic root of 9081660 is about 208.6355989272.

The spelling of 9081660 in words is "nine million, eighty-one thousand, six hundred sixty".