7224775 has 6 divisors (see below), whose sum is σ = 8958752. Its totient is φ = 5779800.

The previous prime is 7224773. The next prime is 7224809. The reversal of 7224775 is 5774227.

It is not a de Polignac number, because 7224775 - 2¹ = 7224773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7224775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144471 + ... + 144520.

Almost surely, 2^7224775 is an apocalyptic number.

7224775 is a deficient number, since it is larger than the sum of its proper divisors (1733977).

7224775 is a wasteful number, since it uses less digits than its factorization.

7224775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289001 (or 288996 counting only the distinct ones).

The product of its digits is 27440, while the sum is 34.

The square root of 7224775 is about 2687.8941571424. The cubic root of 7224775 is about 193.3191048453.

The spelling of 7224775 in words is "seven million, two hundred twenty-four thousand, seven hundred seventy-five".