2721413 has 2 divisors, whose sum is σ = 2721414. Its totient is φ = 2721412.

The previous prime is 2721401. The next prime is 2721419. The reversal of 2721413 is 3141272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 917764 = 1343^2 + 958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2721413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360706 + 1360707.

It is an arithmetic number, because the mean of its divisors is an integer number (1360707).

2^2721413 is an apocalyptic number.

It is an amenable number.

2721413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721413 is an equidigital number, since it uses as much as digits as its factorization.

2721413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 2721413 is about 1649.6705731751. The cubic root of 2721413 is about 139.6148085155.

Adding to 2721413 its reverse (3141272), we get a palindrome (5862685).

The spelling of 2721413 in words is "two million, seven hundred twenty-one thousand, four hundred thirteen".