13929914 has 16 divisors (see below), whose sum is σ = 21520296. Its totient is φ = 6758400.

The previous prime is 13929913. The next prime is 13929961. The reversal of 13929914 is 41992931.

It can be written as a sum of positive squares in 4 ways, for example, as 13446889 + 483025 = 3667^2 + 695^2 .

It is not an unprimeable number, because it can be changed into a prime (13929913) by changing a digit.

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, 20744 + ... + 21404.

Almost surely, 2^13929914 is an apocalyptic number.

13929914 is a deficient number, since it is larger than the sum of its proper divisors (7590382).

13929914 is a wasteful number, since it uses less digits than its factorization.

13929914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961.

The product of its digits is 17496, while the sum is 38.

The square root of 13929914 is about 3732.2800002143. The cubic root of 13929914 is about 240.6113695321.

The spelling of 13929914 in words is "thirteen million, nine hundred twenty-nine thousand, nine hundred fourteen".