7288667213 has 2 divisors, whose sum is σ = 7288667214. Its totient is φ = 7288667212.

The previous prime is 7288667201. The next prime is 7288667231. The reversal of 7288667213 is 3127668827.

Together with next prime (7288667231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6186294409 + 1102372804 = 78653^2 + 33202^2 .

It is an emirp because it is prime and its reverse (3127668827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7288667213 - 2⁶ = 7288667149 is a prime.

It is a super-2 number, since 2×7288667213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7288667233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3644333606 + 3644333607.

It is an arithmetic number, because the mean of its divisors is an integer number (3644333607).

Almost surely, 2^7288667213 is an apocalyptic number.

It is an amenable number.

7288667213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7288667213 is an equidigital number, since it uses as much as digits as its factorization.

7288667213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 7288667213 is about 85373.6915741612. The cubic root of 7288667213 is about 1938.8730491130.

The spelling of 7288667213 in words is "seven billion, two hundred eighty-eight million, six hundred sixty-seven thousand, two hundred thirteen".