73223569 has 2 divisors, whose sum is σ = 73223570. Its totient is φ = 73223568.

The previous prime is 73223567. The next prime is 73223609. The reversal of 73223569 is 96532237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64883025 + 8340544 = 8055^2 + 2888^2 .

It is a cyclic number.

It is not a de Polignac number, because 73223569 - 2¹ = 73223567 is a prime.

It is a super-2 number, since 2×73223569² = 10723382114195522, which contains 22 as substring.

Together with 73223567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73223561) 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, 36611784 + 36611785.

It is an arithmetic number, because the mean of its divisors is an integer number (36611785).

Almost surely, 2^73223569 is an apocalyptic number.

It is an amenable number.

73223569 is a deficient number, since it is larger than the sum of its proper divisors (1).

73223569 is an equidigital number, since it uses as much as digits as its factorization.

73223569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 73223569 is about 8557.0771294876. The cubic root of 73223569 is about 418.3601381039.

The spelling of 73223569 in words is "seventy-three million, two hundred twenty-three thousand, five hundred sixty-nine".