13729838 has 16 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 6547800.

The previous prime is 13729817. The next prime is 13729867. The reversal of 13729838 is 83892731.

It is a junction number, because it is equal to n+sod(n) for n = 13729795 and 13729804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2843 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (1347840).

Almost surely, 2^13729838 is an apocalyptic number.

13729838 is a deficient number, since it is larger than the sum of its proper divisors (7835602).

13729838 is a wasteful number, since it uses less digits than its factorization.

13729838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223.

The product of its digits is 72576, while the sum is 41.

The square root of 13729838 is about 3705.3796026858. The cubic root of 13729838 is about 239.4538390790.

The spelling of 13729838 in words is "thirteen million, seven hundred twenty-nine thousand, eight hundred thirty-eight".