9321661 has 8 divisors (see below), whose sum is σ = 10010304. Its totient is φ = 8648640.

The previous prime is 9321649. The next prime is 9321677. The reversal of 9321661 is 1661239.

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 9321661 - 2⁵ = 9321629 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 (9321691) 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, 2655 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (1251288).

Almost surely, 2^9321661 is an apocalyptic number.

It is an amenable number.

9321661 is a deficient number, since it is larger than the sum of its proper divisors (688643).

9321661 is a wasteful number, since it uses less digits than its factorization.

9321661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811.

The product of its digits is 1944, while the sum is 28.

The square root of 9321661 is about 3053.1395316952. The cubic root of 9321661 is about 210.4575134809.

The spelling of 9321661 in words is "nine million, three hundred twenty-one thousand, six hundred sixty-one".