2712321 has 12 divisors (see below), whose sum is σ = 4088448. Its totient is φ = 1729464.

The previous prime is 2712317. The next prime is 2712329. The reversal of 2712321 is 1232172.

It is not a de Polignac number, because 2712321 - 2² = 2712317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2712294 and 2712303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2712329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6345 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (340704).

2^2712321 is an apocalyptic number.

It is an amenable number.

2712321 is a deficient number, since it is larger than the sum of its proper divisors (1376127).

2712321 is a wasteful number, since it uses less digits than its factorization.

2712321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132 (or 13129 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 2712321 is about 1646.9125659852. The cubic root of 2712321 is about 139.4591548048.

Adding to 2712321 its reverse (1232172), we get a palindrome (3944493).

The spelling of 2712321 in words is "two million, seven hundred twelve thousand, three hundred twenty-one".