7921327 has 4 divisors (see below), whose sum is σ = 8070840. Its totient is φ = 7771816.

The previous prime is 7921313. The next prime is 7921351. The reversal of 7921327 is 7231297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7231297 = 101 ⋅71597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7921327 is a prime.

It is a d-powerful number, because it can be written as 7² + 9⁵ + 2⁵ + 1 + 3⁵ + 2²¹ + 7⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7921307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74677 + ... + 74782.

It is an arithmetic number, because the mean of its divisors is an integer number (2017710).

Almost surely, 2^7921327 is an apocalyptic number.

7921327 is a deficient number, since it is larger than the sum of its proper divisors (149513).

7921327 is a wasteful number, since it uses less digits than its factorization.

7921327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149512.

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

The square root of 7921327 is about 2814.4852104781. The cubic root of 7921327 is about 199.3422307362.

The spelling of 7921327 in words is "seven million, nine hundred twenty-one thousand, three hundred twenty-seven".