13927769 has 4 divisors (see below), whose sum is σ = 14004900. Its totient is φ = 13850640.

The previous prime is 13927751. The next prime is 13927783. The reversal of 13927769 is 96772931.

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: 96772931 = 1913 ⋅50587.

It can be written as a sum of positive squares in 2 ways, for example, as 3655744 + 10272025 = 1912^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 13927769 - 2¹² = 13923673 is a prime.

It is a super-2 number, since 2×13927769² = 387965498634722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13927469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38294 + ... + 38655.

It is an arithmetic number, because the mean of its divisors is an integer number (3501225).

Almost surely, 2^13927769 is an apocalyptic number.

It is an amenable number.

13927769 is a deficient number, since it is larger than the sum of its proper divisors (77131).

13927769 is an equidigital number, since it uses as much as digits as its factorization.

13927769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77130.

The product of its digits is 142884, while the sum is 44.

The square root of 13927769 is about 3731.9926312896. The cubic root of 13927769 is about 240.5990187049.

The spelling of 13927769 in words is "thirteen million, nine hundred twenty-seven thousand, seven hundred sixty-nine".