9721327 has 16 divisors (see below), whose sum is σ = 12201984. Its totient is φ = 7524000.

The previous prime is 9721319. The next prime is 9721357. The reversal of 9721327 is 7231279.

It is not a de Polignac number, because 9721327 - 2³ = 9721319 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 (9721357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14377 + ... + 15037.

It is an arithmetic number, because the mean of its divisors is an integer number (762624).

Almost surely, 2^9721327 is an apocalyptic number.

9721327 is a deficient number, since it is larger than the sum of its proper divisors (2480657).

9721327 is a wasteful number, since it uses less digits than its factorization.

9721327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870.

The product of its digits is 5292, while the sum is 31.

The square root of 9721327 is about 3117.9042640851. The cubic root of 9721327 is about 213.4233097563.

The spelling of 9721327 in words is "nine million, seven hundred twenty-one thousand, three hundred twenty-seven".