7307213 has 2 divisors, whose sum is σ = 7307214. Its totient is φ = 7307212.

The previous prime is 7307207. The next prime is 7307219. The reversal of 7307213 is 3127037.

It is a balanced prime because it is at equal distance from previous prime (7307207) and next prime (7307219).

It can be written as a sum of positive squares in only one way, i.e., 6360484 + 946729 = 2522^2 + 973^2 .

It is an emirp because it is prime and its reverse (3127037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7307213 - 2¹² = 7303117 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7307219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3653606 + 3653607.

It is an arithmetic number, because the mean of its divisors is an integer number (3653607).

Almost surely, 2^7307213 is an apocalyptic number.

It is an amenable number.

7307213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7307213 is an equidigital number, since it uses as much as digits as its factorization.

7307213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 7307213 is about 2703.1857131910. The cubic root of 7307213 is about 194.0516123703.

The spelling of 7307213 in words is "seven million, three hundred seven thousand, two hundred thirteen".