9668215 has 4 divisors (see below), whose sum is σ = 11601864. Its totient is φ = 7734568.

The previous prime is 9668213. The next prime is 9668221. The reversal of 9668215 is 5128669.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9668215 - 2¹ = 9668213 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 (9668213) 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 3 ways as a sum of consecutive naturals, for example, 966817 + ... + 966826.

It is an arithmetic number, because the mean of its divisors is an integer number (2900466).

Almost surely, 2^9668215 is an apocalyptic number.

9668215 is a deficient number, since it is larger than the sum of its proper divisors (1933649).

9668215 is a wasteful number, since it uses less digits than its factorization.

9668215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933648.

The product of its digits is 25920, while the sum is 37.

The square root of 9668215 is about 3109.3753391960. The cubic root of 9668215 is about 213.0339237849.

The spelling of 9668215 in words is "nine million, six hundred sixty-eight thousand, two hundred fifteen".