8128673 has 4 divisors (see below), whose sum is σ = 9289920. Its totient is φ = 6967428.

The previous prime is 8128667. The next prime is 8128691. The reversal of 8128673 is 3768218.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3768218 = 2 ⋅1884109.

It is a cyclic number.

It is not a de Polignac number, because 8128673 - 2²⁰ = 7080097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8128633) 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, 580613 + ... + 580626.

It is an arithmetic number, because the mean of its divisors is an integer number (2322480).

Almost surely, 2^8128673 is an apocalyptic number.

It is an amenable number.

8128673 is a deficient number, since it is larger than the sum of its proper divisors (1161247).

8128673 is a wasteful number, since it uses less digits than its factorization.

8128673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161246.

The product of its digits is 16128, while the sum is 35.

The square root of 8128673 is about 2851.0827767710. The cubic root of 8128673 is about 201.0665769569.

The spelling of 8128673 in words is "eight million, one hundred twenty-eight thousand, six hundred seventy-three".