13075986 has 96 divisors (see below), whose sum is σ = 34320384. Its totient is φ = 3247200.

The previous prime is 13075981. The next prime is 13075991. The reversal of 13075986 is 68957031.

It is an interprime number because it is at equal distance from previous prime (13075981) and next prime (13075991).

It is not an unprimeable number, because it can be changed into a prime (13075981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157501 + ... + 157583.

It is an arithmetic number, because the mean of its divisors is an integer number (357504).

Almost surely, 2^13075986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13075986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17160192).

13075986 is an abundant number, since it is smaller than the sum of its proper divisors (21244398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13075986 is a wasteful number, since it uses less digits than its factorization.

13075986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 13075986 is about 3616.0732846556. The cubic root of 13075986 is about 235.5907034726.

The spelling of 13075986 in words is "thirteen million, seventy-five thousand, nine hundred eighty-six".