13738691 has 4 divisors (see below), whose sum is σ = 14461800. Its totient is φ = 13015584.

The previous prime is 13738667. The next prime is 13738717. The reversal of 13738691 is 19683731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19683731 = 41 ⋅480091.

It is a cyclic number.

It is not a de Polignac number, because 13738691 - 2²² = 9544387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13738391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361526 + ... + 361563.

It is an arithmetic number, because the mean of its divisors is an integer number (3615450).

Almost surely, 2^13738691 is an apocalyptic number.

13738691 is a deficient number, since it is larger than the sum of its proper divisors (723109).

13738691 is an equidigital number, since it uses as much as digits as its factorization.

13738691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723108.

The product of its digits is 27216, while the sum is 38.

The square root of 13738691 is about 3706.5740246217. The cubic root of 13738691 is about 239.5052946356.

The spelling of 13738691 in words is "thirteen million, seven hundred thirty-eight thousand, six hundred ninety-one".