13291982 has 16 divisors (see below), whose sum is σ = 22896000. Its totient is φ = 5723640.

The previous prime is 13291939. The next prime is 13292009. The reversal of 13291982 is 28919231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15482 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (1431000).

Almost surely, 2^13291982 is an apocalyptic number.

13291982 is a deficient number, since it is larger than the sum of its proper divisors (9604018).

13291982 is a wasteful number, since it uses less digits than its factorization.

13291982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31831.

The product of its digits is 7776, while the sum is 35.

The square root of 13291982 is about 3645.8170552018. The cubic root of 13291982 is about 236.8808293087.

The spelling of 13291982 in words is "thirteen million, two hundred ninety-one thousand, nine hundred eighty-two".