180797873 has 8 divisors (see below), whose sum is σ = 196607592. Its totient is φ = 165563136.

The previous prime is 180797867. The next prime is 180797891. The reversal of 180797873 is 378797081.

It can be written as a sum of positive squares in 4 ways, for example, as 131629729 + 49168144 = 11473^2 + 7012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180797873 - 2⁶ = 180797809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180797833) 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 7 ways as a sum of consecutive naturals, for example, 143090 + ... + 144347.

It is an arithmetic number, because the mean of its divisors is an integer number (24575949).

Almost surely, 2^180797873 is an apocalyptic number.

It is an amenable number.

180797873 is a deficient number, since it is larger than the sum of its proper divisors (15809719).

180797873 is a wasteful number, since it uses less digits than its factorization.

180797873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287491.

The product of its (nonzero) digits is 592704, while the sum is 50.

The square root of 180797873 is about 13446.1099579023. The cubic root of 180797873 is about 565.4546401999.

It can be divided in two parts, 18079 and 7873, that added together give a palindrome (25952).

The spelling of 180797873 in words is "one hundred eighty million, seven hundred ninety-seven thousand, eight hundred seventy-three".