7221774629 has 2 divisors, whose sum is σ = 7221774630. Its totient is φ = 7221774628.

The previous prime is 7221774583. The next prime is 7221774643. The reversal of 7221774629 is 9264771227.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7179172900 + 42601729 = 84730^2 + 6527^2 .

It is a cyclic number.

It is not a de Polignac number, because 7221774629 - 2¹⁶ = 7221709093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7221774649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610887314 + 3610887315.

It is an arithmetic number, because the mean of its divisors is an integer number (3610887315).

Almost surely, 2^7221774629 is an apocalyptic number.

It is an amenable number.

7221774629 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221774629 is an equidigital number, since it uses as much as digits as its factorization.

7221774629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 47.

The square root of 7221774629 is about 84981.0251114918. The cubic root of 7221774629 is about 1932.9234002807.

The spelling of 7221774629 in words is "seven billion, two hundred twenty-one million, seven hundred seventy-four thousand, six hundred twenty-nine".