7221283 has 2 divisors, whose sum is σ = 7221284. Its totient is φ = 7221282.

The previous prime is 7221281. The next prime is 7221293. The reversal of 7221283 is 3821227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7221283 - 2¹ = 7221281 is a prime.

Together with 7221281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7221281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610641 + 3610642.

It is an arithmetic number, because the mean of its divisors is an integer number (3610642).

Almost surely, 2^7221283 is an apocalyptic number.

7221283 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221283 is an equidigital number, since it uses as much as digits as its factorization.

7221283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 7221283 is about 2687.2444994827. The cubic root of 7221283 is about 193.2879537435.

The spelling of 7221283 in words is "seven million, two hundred twenty-one thousand, two hundred eighty-three".