7224761 has 2 divisors, whose sum is σ = 7224762. Its totient is φ = 7224760.

The previous prime is 7224751. The next prime is 7224773. The reversal of 7224761 is 1674227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4141225 + 3083536 = 2035^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 7224761 - 2⁶ = 7224697 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7³ + 2⁵ + 2¹⁷ + 4¹⁰ + 7⁸ + 6⁷ + 1 .

It is not a weakly prime, because it can be changed into another prime (7224751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612380 + 3612381.

It is an arithmetic number, because the mean of its divisors is an integer number (3612381).

Almost surely, 2^7224761 is an apocalyptic number.

It is an amenable number.

7224761 is a deficient number, since it is larger than the sum of its proper divisors (1).

7224761 is an equidigital number, since it uses as much as digits as its factorization.

7224761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 7224761 is about 2687.8915528719. The cubic root of 7224761 is about 193.3189799755.

Adding to 7224761 its reverse (1674227), we get a palindrome (8898988).

The spelling of 7224761 in words is "seven million, two hundred twenty-four thousand, seven hundred sixty-one".