13568427 has 6 divisors (see below), whose sum is σ = 19598852. Its totient is φ = 9045612.

The previous prime is 13568419. The next prime is 13568453. The reversal of 13568427 is 72486531.

It is not a de Polignac number, because 13568427 - 2³ = 13568419 is a prime.

It is a super-2 number, since 2×13568427² = 368204422508658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13568391 and 13568400.

It is not an unprimeable number, because it can be changed into a prime (13568497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 753793 + ... + 753810.

Almost surely, 2^13568427 is an apocalyptic number.

13568427 is a deficient number, since it is larger than the sum of its proper divisors (6030425).

13568427 is a wasteful number, since it uses less digits than its factorization.

13568427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507609 (or 1507606 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 13568427 is about 3683.5345797210. The cubic root of 13568427 is about 238.5117803340.

The spelling of 13568427 in words is "thirteen million, five hundred sixty-eight thousand, four hundred twenty-seven".