7288213 has 2 divisors, whose sum is σ = 7288214. Its totient is φ = 7288212.

The previous prime is 7288181. The next prime is 7288231. The reversal of 7288213 is 3128827.

Together with next prime (7288231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3928324 + 3359889 = 1982^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 7288213 - 2⁵ = 7288181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7288273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3644106 + 3644107.

It is an arithmetic number, because the mean of its divisors is an integer number (3644107).

Almost surely, 2^7288213 is an apocalyptic number.

It is an amenable number.

7288213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7288213 is an equidigital number, since it uses as much as digits as its factorization.

7288213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 7288213 is about 2699.6690537916. The cubic root of 7288213 is about 193.8832772905.

The spelling of 7288213 in words is "seven million, two hundred eighty-eight thousand, two hundred thirteen".