2716321 has 4 divisors (see below), whose sum is σ = 2720944. Its totient is φ = 2711700.

The previous prime is 2716319. The next prime is 2716327. The reversal of 2716321 is 1236172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2716321 - 2¹ = 2716319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2716292 and 2716301.

It is not an unprimeable number, because it can be changed into a prime (2716327) 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, 1275 + ... + 2656.

It is an arithmetic number, because the mean of its divisors is an integer number (680236).

2^2716321 is an apocalyptic number.

It is an amenable number.

2716321 is a deficient number, since it is larger than the sum of its proper divisors (4623).

2716321 is an equidigital number, since it uses as much as digits as its factorization.

2716321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622.

The product of its digits is 504, while the sum is 22.

The square root of 2716321 is about 1648.1265121343. The cubic root of 2716321 is about 139.5276770066.

The spelling of 2716321 in words is "two million, seven hundred sixteen thousand, three hundred twenty-one".