73224873 has 6 divisors (see below), whose sum is σ = 105769274. Its totient is φ = 48816576.

The previous prime is 73224869. The next prime is 73224889. The reversal of 73224873 is 37842237.

It can be written as a sum of positive squares in only one way, i.e., 72539289 + 685584 = 8517^2 + 828^2 .

It is not a de Polignac number, because 73224873 - 2² = 73224869 is a prime.

It is a super-2 number, since 2×73224873² = 10723764051732258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73224973) 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 in 5 ways as a sum of consecutive naturals, for example, 4068040 + ... + 4068057.

Almost surely, 2^73224873 is an apocalyptic number.

It is an amenable number.

73224873 is a deficient number, since it is larger than the sum of its proper divisors (32544401).

73224873 is a wasteful number, since it uses less digits than its factorization.

73224873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136103 (or 8136100 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 73224873 is about 8557.1533233897. The cubic root of 73224873 is about 418.3626215409.

The spelling of 73224873 in words is "seventy-three million, two hundred twenty-four thousand, eight hundred seventy-three".