13872769 has 4 divisors (see below), whose sum is σ = 13978800. Its totient is φ = 13766740.

The previous prime is 13872763. The next prime is 13872773. The reversal of 13872769 is 96727831.

It is a happy number.

13872769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96727831 = 2153 ⋅44927.

It is a cyclic number.

It is not a de Polignac number, because 13872769 - 2⁵ = 13872737 is a prime.

It is a super-2 number, since 2×13872769² = 384907439454722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13872763) 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, 52819 + ... + 53080.

It is an arithmetic number, because the mean of its divisors is an integer number (3494700).

Almost surely, 2^13872769 is an apocalyptic number.

It is an amenable number.

13872769 is a deficient number, since it is larger than the sum of its proper divisors (106031).

13872769 is a wasteful number, since it uses less digits than its factorization.

13872769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106030.

The product of its digits is 127008, while the sum is 43.

The square root of 13872769 is about 3724.6166245669. The cubic root of 13872769 is about 240.2818967722.

It can be divided in two parts, 13872 and 769, that added together give a palindrome (14641).

The spelling of 13872769 in words is "thirteen million, eight hundred seventy-two thousand, seven hundred sixty-nine".