8113391 has 8 divisors (see below), whose sum is σ = 9531984. Its totient is φ = 6808320.

The previous prime is 8113387. The next prime is 8113421. The reversal of 8113391 is 1933118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8113391 - 2² = 8113387 is a prime.

It is a super-3 number, since 3×8113391³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a plaindrome in base 14 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 8113391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8113321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28226 + ... + 28511.

It is an arithmetic number, because the mean of its divisors is an integer number (1191498).

Almost surely, 2^8113391 is an apocalyptic number.

8113391 is a deficient number, since it is larger than the sum of its proper divisors (1418593).

8113391 is a wasteful number, since it uses less digits than its factorization.

8113391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56761.

The product of its digits is 648, while the sum is 26.

The square root of 8113391 is about 2848.4014815331. The cubic root of 8113391 is about 200.9404954094.

The spelling of 8113391 in words is "eight million, one hundred thirteen thousand, three hundred ninety-one".