13711391 has 2 divisors, whose sum is σ = 13711392. Its totient is φ = 13711390.

The previous prime is 13711387. The next prime is 13711409. The reversal of 13711391 is 19311731.

13711391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13711391 - 2² = 13711387 is a prime.

It is a super-3 number, since 3×13711391³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13711391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13711361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6855695 + 6855696.

It is an arithmetic number, because the mean of its divisors is an integer number (6855696).

Almost surely, 2^13711391 is an apocalyptic number.

13711391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13711391 is an equidigital number, since it uses as much as digits as its factorization.

13711391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567, while the sum is 26.

The square root of 13711391 is about 3702.8895473670. The cubic root of 13711391 is about 239.3465500073.

The spelling of 13711391 in words is "thirteen million, seven hundred eleven thousand, three hundred ninety-one".