13853986 has 8 divisors (see below), whose sum is σ = 20905920. Its totient is φ = 6885348.

The previous prime is 13853977. The next prime is 13853999. The reversal of 13853986 is 68935831.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20406 + ... + 21073.

It is an arithmetic number, because the mean of its divisors is an integer number (2613240).

Almost surely, 2^13853986 is an apocalyptic number.

13853986 is a deficient number, since it is larger than the sum of its proper divisors (7051934).

13853986 is a wasteful number, since it uses less digits than its factorization.

13853986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41648.

The product of its digits is 155520, while the sum is 43.

The square root of 13853986 is about 3722.0943029429. The cubic root of 13853986 is about 240.1734047740.

The spelling of 13853986 in words is "thirteen million, eight hundred fifty-three thousand, nine hundred eighty-six".