7228747 has 2 divisors, whose sum is σ = 7228748. Its totient is φ = 7228746.

The previous prime is 7228733. The next prime is 7228769. The reversal of 7228747 is 7478227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7228747 - 2⁷ = 7228619 is a prime.

It is not a weakly prime, because it can be changed into another prime (7228717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3614373 + 3614374.

It is an arithmetic number, because the mean of its divisors is an integer number (3614374).

Almost surely, 2^7228747 is an apocalyptic number.

7228747 is a deficient number, since it is larger than the sum of its proper divisors (1).

7228747 is an equidigital number, since it uses as much as digits as its factorization.

7228747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43904, while the sum is 37.

The square root of 7228747 is about 2688.6329239969. The cubic root of 7228747 is about 193.3545256859.

The spelling of 7228747 in words is "seven million, two hundred twenty-eight thousand, seven hundred forty-seven".