13063691 has 4 divisors (see below), whose sum is σ = 13077792. Its totient is φ = 13049592.

The previous prime is 13063663. The next prime is 13063693. The reversal of 13063691 is 19636031.

13063691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19636031 = 439 ⋅44729.

It is a cyclic number.

It is not a de Polignac number, because 13063691 - 2²² = 8869387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13063693) 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, 5555 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (3269448).

Almost surely, 2^13063691 is an apocalyptic number.

13063691 is a deficient number, since it is larger than the sum of its proper divisors (14101).

13063691 is an equidigital number, since it uses as much as digits as its factorization.

13063691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14100.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13063691 is about 3614.3728363300. The cubic root of 13063691 is about 235.5168404376.

The spelling of 13063691 in words is "thirteen million, sixty-three thousand, six hundred ninety-one".