13405927 has 2 divisors, whose sum is σ = 13405928. Its totient is φ = 13405926.

The previous prime is 13405913. The next prime is 13405957. The reversal of 13405927 is 72950431.

13405927 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (72950431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13405927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13405957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702963 + 6702964.

It is an arithmetic number, because the mean of its divisors is an integer number (6702964).

Almost surely, 2^13405927 is an apocalyptic number.

13405927 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405927 is an equidigital number, since it uses as much as digits as its factorization.

13405927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13405927 is about 3661.4105205508. The cubic root of 13405927 is about 237.5557881872. Note that the first 3 decimals are identical.

The spelling of 13405927 in words is "thirteen million, four hundred five thousand, nine hundred twenty-seven".