13731838 has 4 divisors (see below), whose sum is σ = 20597760. Its totient is φ = 6865918.

The previous prime is 13731829. The next prime is 13731863. The reversal of 13731838 is 83813731.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3432958 + ... + 3432961.

It is an arithmetic number, because the mean of its divisors is an integer number (5149440).

Almost surely, 2^13731838 is an apocalyptic number.

13731838 is a deficient number, since it is larger than the sum of its proper divisors (6865922).

13731838 is an equidigital number, since it uses as much as digits as its factorization.

13731838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6865921.

The product of its digits is 12096, while the sum is 34.

The square root of 13731838 is about 3705.6494707406. The cubic root of 13731838 is about 239.4654654465.

The spelling of 13731838 in words is "thirteen million, seven hundred thirty-one thousand, eight hundred thirty-eight".