13958771 has 2 divisors, whose sum is σ = 13958772. Its totient is φ = 13958770.

The previous prime is 13958759. The next prime is 13958783. The reversal of 13958771 is 17785931.

It is a balanced prime because it is at equal distance from previous prime (13958759) and next prime (13958783).

It is an emirp because it is prime and its reverse (17785931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13958771 - 2¹⁴ = 13942387 is a prime.

It is not a weakly prime, because it can be changed into another prime (13958701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979385 + 6979386.

It is an arithmetic number, because the mean of its divisors is an integer number (6979386).

Almost surely, 2^13958771 is an apocalyptic number.

13958771 is a deficient number, since it is larger than the sum of its proper divisors (1).

13958771 is an equidigital number, since it uses as much as digits as its factorization.

13958771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 41.

The square root of 13958771 is about 3736.1438676796. The cubic root of 13958771 is about 240.7774038962. Note that the first 3 decimals are identical.

The spelling of 13958771 in words is "thirteen million, nine hundred fifty-eight thousand, seven hundred seventy-one".