13746691 has 4 divisors (see below), whose sum is σ = 15710512. Its totient is φ = 11782872.

The previous prime is 13746653. The next prime is 13746731. The reversal of 13746691 is 19664731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19664731 = 2857 ⋅6883.

It is a cyclic number.

It is not a de Polignac number, because 13746691 - 2⁹ = 13746179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13746691.

It is not an unprimeable number, because it can be changed into a prime (13746631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981900 + ... + 981913.

It is an arithmetic number, because the mean of its divisors is an integer number (3927628).

Almost surely, 2^13746691 is an apocalyptic number.

13746691 is a deficient number, since it is larger than the sum of its proper divisors (1963821).

13746691 is an equidigital number, since it uses as much as digits as its factorization.

13746691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963820.

The product of its digits is 27216, while the sum is 37.

The square root of 13746691 is about 3707.6530312315. The cubic root of 13746691 is about 239.5517733618.

The spelling of 13746691 in words is "thirteen million, seven hundred forty-six thousand, six hundred ninety-one".