13896638 has 32 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 5569344.

The previous prime is 13896601. The next prime is 13896643. The reversal of 13896638 is 83669831.

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 15 ways as a sum of consecutive naturals, for example, 23381 + ... + 23967.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^13896638 is an apocalyptic number.

13896638 is a deficient number, since it is larger than the sum of its proper divisors (11504962).

13896638 is a wasteful number, since it uses less digits than its factorization.

13896638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704.

The product of its digits is 186624, while the sum is 44.

The square root of 13896638 is about 3727.8194698778. The cubic root of 13896638 is about 240.4196246817.

The spelling of 13896638 in words is "thirteen million, eight hundred ninety-six thousand, six hundred thirty-eight".