9351666 has 64 divisors (see below), whose sum is σ = 22498560. Its totient is φ = 2868480.

The previous prime is 9351653. The next prime is 9351689. The reversal of 9351666 is 6661539.

It is a self number, because there is not a number n which added to its sum of digits gives 9351666.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 55915 + ... + 56081.

It is an arithmetic number, because the mean of its divisors is an integer number (351540).

Almost surely, 2^9351666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9351666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11249280).

9351666 is an abundant number, since it is smaller than the sum of its proper divisors (13146894).

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

9351666 is a wasteful number, since it uses less digits than its factorization.

9351666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 250 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 9351666 is about 3058.0493782802. The cubic root of 9351666 is about 210.6830818050.

It can be divided in two parts, 935 and 1666, that added together give a square (2601 = 51²).

The spelling of 9351666 in words is "nine million, three hundred fifty-one thousand, six hundred sixty-six".