9224386621 has 2 divisors, whose sum is σ = 9224386622. Its totient is φ = 9224386620.

The previous prime is 9224386547. The next prime is 9224386649. The reversal of 9224386621 is 1266834229.

9224386621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9136683396 + 87703225 = 95586^2 + 9365^2 .

It is a cyclic number.

It is not a de Polignac number, because 9224386621 - 2¹¹ = 9224384573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9224386651) 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, 4612193310 + 4612193311.

It is an arithmetic number, because the mean of its divisors is an integer number (4612193311).

Almost surely, 2^9224386621 is an apocalyptic number.

It is an amenable number.

9224386621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9224386621 is an equidigital number, since it uses as much as digits as its factorization.

9224386621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 9224386621 is about 96043.6703848827. The cubic root of 9224386621 is about 2097.2288937560.

The spelling of 9224386621 in words is "nine billion, two hundred twenty-four million, three hundred eighty-six thousand, six hundred twenty-one".