7224647 has 2 divisors, whose sum is σ = 7224648. Its totient is φ = 7224646.

The previous prime is 7224641. The next prime is 7224661. The reversal of 7224647 is 7464227.

It is a weak prime.

It is an emirp because it is prime and its reverse (7464227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7224647 - 2⁸ = 7224391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7224641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612323 + 3612324.

It is an arithmetic number, because the mean of its divisors is an integer number (3612324).

Almost surely, 2^7224647 is an apocalyptic number.

7224647 is a deficient number, since it is larger than the sum of its proper divisors (1).

7224647 is an equidigital number, since it uses as much as digits as its factorization.

7224647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 32.

The square root of 7224647 is about 2687.8703465755. The cubic root of 7224647 is about 193.3179631723.

The spelling of 7224647 in words is "seven million, two hundred twenty-four thousand, six hundred forty-seven".