8085423547 has 4 divisors (see below), whose sum is σ = 8217971536. Its totient is φ = 7952875560.

The previous prime is 8085423529. The next prime is 8085423559. The reversal of 8085423547 is 7453245808.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8085423547 is a prime.

It is a super-2 number, since 2×8085423547² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8085423497 and 8085423506.

It is not an unprimeable number, because it can be changed into a prime (8085423517) 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, 66273903 + ... + 66274024.

It is an arithmetic number, because the mean of its divisors is an integer number (2054492884).

Almost surely, 2^8085423547 is an apocalyptic number.

8085423547 is a deficient number, since it is larger than the sum of its proper divisors (132547989).

8085423547 is a wasteful number, since it uses less digits than its factorization.

8085423547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132547988.

The product of its (nonzero) digits is 1075200, while the sum is 46.

The square root of 8085423547 is about 89918.9832404704. The cubic root of 8085423547 is about 2007.0934407227.

It can be divided in two parts, 80854 and 23547, that added together give a palindrome (104401).

The spelling of 8085423547 in words is "eight billion, eighty-five million, four hundred twenty-three thousand, five hundred forty-seven".