8113689 has 10 divisors (see below), whose sum is σ = 12120570. Its totient is φ = 5409072.

The previous prime is 8113681. The next prime is 8113691. The reversal of 8113689 is 9863118.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 3640464 = 2115^2 + 1908^2 .

It is not a de Polignac number, because 8113689 - 2³ = 8113681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8113681) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50004 + ... + 50165.

It is an arithmetic number, because the mean of its divisors is an integer number (1212057).

Almost surely, 2^8113689 is an apocalyptic number.

It is an amenable number.

8113689 is a deficient number, since it is larger than the sum of its proper divisors (4006881).

8113689 is a wasteful number, since it uses less digits than its factorization.

8113689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100181 (or 100172 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 8113689 is about 2848.4537910944. The cubic root of 8113689 is about 200.9429555207.

It can be divided in two parts, 81136 and 89, that added together give a square (81225 = 285²).

The spelling of 8113689 in words is "eight million, one hundred thirteen thousand, six hundred eighty-nine".