73315873 has 2 divisors, whose sum is σ = 73315874. Its totient is φ = 73315872.

The previous prime is 73315859. The next prime is 73315919. The reversal of 73315873 is 37851337.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69505569 + 3810304 = 8337^2 + 1952^2 .

It is an emirp because it is prime and its reverse (37851337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73315873 - 2⁵ = 73315841 is a prime.

It is not a weakly prime, because it can be changed into another prime (73355873) 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, 36657936 + 36657937.

It is an arithmetic number, because the mean of its divisors is an integer number (36657937).

Almost surely, 2^73315873 is an apocalyptic number.

It is an amenable number.

73315873 is a deficient number, since it is larger than the sum of its proper divisors (1).

73315873 is an equidigital number, since it uses as much as digits as its factorization.

73315873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 73315873 is about 8562.4688612572. The cubic root of 73315873 is about 418.5358561128.

The spelling of 73315873 in words is "seventy-three million, three hundred fifteen thousand, eight hundred seventy-three".