13986514 has 4 divisors (see below), whose sum is σ = 20979774. Its totient is φ = 6993256.

The previous prime is 13986509. The next prime is 13986547. The reversal of 13986514 is 41568931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41568931 = 79 ⋅526189.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 110889 = 3725^2 + 333^2 .

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 as a sum of consecutive naturals, namely, 3496627 + ... + 3496630.

Almost surely, 2^13986514 is an apocalyptic number.

13986514 is a deficient number, since it is larger than the sum of its proper divisors (6993260).

13986514 is an equidigital number, since it uses as much as digits as its factorization.

13986514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993259.

The product of its digits is 25920, while the sum is 37.

The square root of 13986514 is about 3739.8548100160. The cubic root of 13986514 is about 240.9368130347.

The spelling of 13986514 in words is "thirteen million, nine hundred eighty-six thousand, five hundred fourteen".