8389045473 has 4 divisors (see below), whose sum is σ = 11185393968. Its totient is φ = 5592696980.

The previous prime is 8389045451. The next prime is 8389045493. The reversal of 8389045473 is 3745409838.

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 8389045473 - 2¹³ = 8389037281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8389045493) 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, 1398174243 + ... + 1398174248.

It is an arithmetic number, because the mean of its divisors is an integer number (2796348492).

Almost surely, 2^8389045473 is an apocalyptic number.

It is an amenable number.

8389045473 is a deficient number, since it is larger than the sum of its proper divisors (2796348495).

8389045473 is a wasteful number, since it uses less digits than its factorization.

8389045473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796348494.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 8389045473 is about 91591.7325581299. The cubic root of 8389045473 is about 2031.9086672096.

The spelling of 8389045473 in words is "eight billion, three hundred eighty-nine million, forty-five thousand, four hundred seventy-three".