8506008491 has 4 divisors (see below), whose sum is σ = 8512169184. Its totient is φ = 8499847800.

The previous prime is 8506008487. The next prime is 8506008499. The reversal of 8506008491 is 1948006058.

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 8506008491 - 2² = 8506008487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8506008499) 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, 3078275 + ... + 3081036.

It is an arithmetic number, because the mean of its divisors is an integer number (2128042296).

Almost surely, 2^8506008491 is an apocalyptic number.

8506008491 is a deficient number, since it is larger than the sum of its proper divisors (6160693).

8506008491 is a wasteful number, since it uses less digits than its factorization.

8506008491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160692.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 8506008491 is about 92228.0244340081. The cubic root of 8506008491 is about 2041.3083119696.

The spelling of 8506008491 in words is "eight billion, five hundred six million, eight thousand, four hundred ninety-one".