9668990 has 16 divisors (see below), whose sum is σ = 17465760. Its totient is φ = 3853920.

The previous prime is 9668987. The next prime is 9668999. The reversal of 9668990 is 998669.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9668999) 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, 1556 + ... + 4664.

It is an arithmetic number, because the mean of its divisors is an integer number (1091610).

Almost surely, 2^9668990 is an apocalyptic number.

It is a pronic number, being equal to 3109×3110.

9668990 is a deficient number, since it is larger than the sum of its proper divisors (7796770).

9668990 is a wasteful number, since it uses less digits than its factorization.

9668990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 9668990 is about 3109.4999598006. The cubic root of 9668990 is about 213.0396158690.

The spelling of 9668990 in words is "nine million, six hundred sixty-eight thousand, nine hundred ninety".