73224869 has 2 divisors, whose sum is σ = 73224870. Its totient is φ = 73224868.

The previous prime is 73224857. The next prime is 73224889. The reversal of 73224869 is 96842237.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68973025 + 4251844 = 8305^2 + 2062^2 .

It is a cyclic number.

It is not a de Polignac number, because 73224869 - 2¹² = 73220773 is a prime.

It is a super-2 number, since 2×73224869² = 10723762880134322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73224889) 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, 36612434 + 36612435.

It is an arithmetic number, because the mean of its divisors is an integer number (36612435).

Almost surely, 2^73224869 is an apocalyptic number.

It is an amenable number.

73224869 is a deficient number, since it is larger than the sum of its proper divisors (1).

73224869 is an equidigital number, since it uses as much as digits as its factorization.

73224869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 73224869 is about 8557.1530896671. The cubic root of 73224869 is about 418.3626139231.

The spelling of 73224869 in words is "seventy-three million, two hundred twenty-four thousand, eight hundred sixty-nine".