7225447 has 4 divisors (see below), whose sum is σ = 7235416. Its totient is φ = 7215480.

The previous prime is 7225441. The next prime is 7225469. The reversal of 7225447 is 7445227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7445227 = 809 ⋅9203.

It is a cyclic number.

It is not a de Polignac number, because 7225447 - 2¹⁹ = 6701159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3804 + ... + 5377.

It is an arithmetic number, because the mean of its divisors is an integer number (1808854).

Almost surely, 2^7225447 is an apocalyptic number.

7225447 is a deficient number, since it is larger than the sum of its proper divisors (9969).

7225447 is an equidigital number, since it uses as much as digits as its factorization.

7225447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9968.

The product of its digits is 15680, while the sum is 31.

The square root of 7225447 is about 2688.0191591579. The cubic root of 7225447 is about 193.3250984073.

The spelling of 7225447 in words is "seven million, two hundred twenty-five thousand, four hundred forty-seven".