7228471 has 2 divisors, whose sum is σ = 7228472. Its totient is φ = 7228470.

The previous prime is 7228447. The next prime is 7228477. The reversal of 7228471 is 1748227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7228471 - 2¹⁷ = 7097399 is a prime.

It is a super-3 number, since 3×7228471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7228477) 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, 3614235 + 3614236.

It is an arithmetic number, because the mean of its divisors is an integer number (3614236).

Almost surely, 2^7228471 is an apocalyptic number.

7228471 is a deficient number, since it is larger than the sum of its proper divisors (1).

7228471 is an equidigital number, since it uses as much as digits as its factorization.

7228471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 31.

The square root of 7228471 is about 2688.5815963069. The cubic root of 7228471 is about 193.3520648386.

The spelling of 7228471 in words is "seven million, two hundred twenty-eight thousand, four hundred seventy-one".