873665823223 has 4 divisors (see below), whose sum is σ = 873963092520. Its totient is φ = 873368553928.

The previous prime is 873665823211. The next prime is 873665823227. The reversal of 873665823223 is 322328566378.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 873665823223 - 2³³ = 865075888631 is a prime.

It is a super-2 number, since 2×873665823223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873665823227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148630240 + ... + 148636117.

It is an arithmetic number, because the mean of its divisors is an integer number (218490773130).

Almost surely, 2^873665823223 is an apocalyptic number.

873665823223 is a deficient number, since it is larger than the sum of its proper divisors (297269297).

873665823223 is a wasteful number, since it uses less digits than its factorization.

873665823223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297269296.

The product of its digits is 17418240, while the sum is 55.

The spelling of 873665823223 in words is "eight hundred seventy-three billion, six hundred sixty-five million, eight hundred twenty-three thousand, two hundred twenty-three".