7318273 has 2 divisors, whose sum is σ = 7318274. Its totient is φ = 7318272.

The previous prime is 7318271. The next prime is 7318303. The reversal of 7318273 is 3728137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6036849 + 1281424 = 2457^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 7318273 - 2¹ = 7318271 is a prime.

Together with 7318271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7318271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3659136 + 3659137.

It is an arithmetic number, because the mean of its divisors is an integer number (3659137).

Almost surely, 2^7318273 is an apocalyptic number.

It is an amenable number.

7318273 is a deficient number, since it is larger than the sum of its proper divisors (1).

7318273 is an equidigital number, since it uses as much as digits as its factorization.

7318273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 7318273 is about 2705.2306740831. The cubic root of 7318273 is about 194.1494667747.

The spelling of 7318273 in words is "seven million, three hundred eighteen thousand, two hundred seventy-three".