13779271 has 4 divisors (see below), whose sum is σ = 15031944. Its totient is φ = 12526600.

The previous prime is 13779257. The next prime is 13779289. The reversal of 13779271 is 17297731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17297731 = 11 ⋅1572521.

It is a cyclic number.

It is not a de Polignac number, because 13779271 - 2⁹ = 13778759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13779271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13779251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626320 + ... + 626341.

It is an arithmetic number, because the mean of its divisors is an integer number (3757986).

Almost surely, 2^13779271 is an apocalyptic number.

13779271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13779271 is a deficient number, since it is larger than the sum of its proper divisors (1252673).

13779271 is a wasteful number, since it uses less digits than its factorization.

13779271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252672.

The product of its digits is 18522, while the sum is 37.

The square root of 13779271 is about 3712.0440460749. The cubic root of 13779271 is about 239.7408719404.

It can be divided in two parts, 1377 and 9271, that added together give a cube (10648 = 22³).

The spelling of 13779271 in words is "thirteen million, seven hundred seventy-nine thousand, two hundred seventy-one".