842730173 has 4 divisors (see below), whose sum is σ = 848793120. Its totient is φ = 836667228.

The previous prime is 842730151. The next prime is 842730191. The reversal of 842730173 is 371037248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 842730173 - 2²⁰ = 841681597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842730193) 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, 3031265 + ... + 3031542.

It is an arithmetic number, because the mean of its divisors is an integer number (212198280).

Almost surely, 2^842730173 is an apocalyptic number.

It is an amenable number.

842730173 is a deficient number, since it is larger than the sum of its proper divisors (6062947).

842730173 is a wasteful number, since it uses less digits than its factorization.

842730173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062946.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 842730173 is about 29029.8152422643. The cubic root of 842730173 is about 944.5599223745.

The spelling of 842730173 in words is "eight hundred forty-two million, seven hundred thirty thousand, one hundred seventy-three".