8031386117 has 4 divisors (see below), whose sum is σ = 8032454220. Its totient is φ = 8030318016.

The previous prime is 8031386113. The next prime is 8031386149. The reversal of 8031386117 is 7116831308.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4913168836 + 3118217281 = 70094^2 + 55841^2 .

It is a cyclic number.

It is not a de Polignac number, because 8031386117 - 2² = 8031386113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8031386113) 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, 522692 + ... + 537837.

It is an arithmetic number, because the mean of its divisors is an integer number (2008113555).

Almost surely, 2^8031386117 is an apocalyptic number.

It is an amenable number.

8031386117 is a deficient number, since it is larger than the sum of its proper divisors (1068103).

8031386117 is a wasteful number, since it uses less digits than its factorization.

8031386117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068102.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 8031386117 is about 89618.0010767926. The cubic root of 8031386117 is about 2002.6120967401.

The spelling of 8031386117 in words is "eight billion, thirty-one million, three hundred eighty-six thousand, one hundred seventeen".