13927565 has 4 divisors (see below), whose sum is σ = 16713084. Its totient is φ = 11142048.

The previous prime is 13927553. The next prime is 13927583. The reversal of 13927565 is 56572931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56572931 = 839 ⋅67429.

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 5621641 = 2882^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 13927565 - 2⁴ = 13927549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392752 + ... + 1392761.

It is an arithmetic number, because the mean of its divisors is an integer number (4178271).

Almost surely, 2^13927565 is an apocalyptic number.

It is an amenable number.

13927565 is a deficient number, since it is larger than the sum of its proper divisors (2785519).

13927565 is an equidigital number, since it uses as much as digits as its factorization.

13927565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785518.

The product of its digits is 56700, while the sum is 38.

The square root of 13927565 is about 3731.9652999459. The cubic root of 13927565 is about 240.5978440147.

The spelling of 13927565 in words is "thirteen million, nine hundred twenty-seven thousand, five hundred sixty-five".