8113405 has 4 divisors (see below), whose sum is σ = 9736092. Its totient is φ = 6490720.

The previous prime is 8113387. The next prime is 8113421. The reversal of 8113405 is 5043118.

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 2604996 + 5508409 = 1614^2 + 2347^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8113405 is a prime.

It is an Ulam number.

It is a Duffinian number.

8113405 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 811336 + ... + 811345.

It is an arithmetic number, because the mean of its divisors is an integer number (2434023).

Almost surely, 2^8113405 is an apocalyptic number.

It is an amenable number.

8113405 is a deficient number, since it is larger than the sum of its proper divisors (1622687).

8113405 is a wasteful number, since it uses less digits than its factorization.

8113405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622686.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8113405 is about 2848.4039390508. The cubic root of 8113405 is about 200.9406109865.

The spelling of 8113405 in words is "eight million, one hundred thirteen thousand, four hundred five".