8085906047 has 4 divisors (see below), whose sum is σ = 8087239656. Its totient is φ = 8084572440.

The previous prime is 8085906043. The next prime is 8085906091. The reversal of 8085906047 is 7406095808.

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 8085906047 - 2² = 8085906043 is a prime.

It is a super-2 number, since 2×8085906047² (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 = 8085905992 and 8085906010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8085906043) 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, 657668 + ... + 669849.

It is an arithmetic number, because the mean of its divisors is an integer number (2021809914).

Almost surely, 2^8085906047 is an apocalyptic number.

8085906047 is a deficient number, since it is larger than the sum of its proper divisors (1333609).

8085906047 is a wasteful number, since it uses less digits than its factorization.

8085906047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333608.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 8085906047 is about 89921.6661711737. Note that the first 3 decimals coincide. The cubic root of 8085906047 is about 2007.1333645567.

The spelling of 8085906047 in words is "eight billion, eighty-five million, nine hundred six thousand, forty-seven".