13829765 has 4 divisors (see below), whose sum is σ = 16595724. Its totient is φ = 11063808.

The previous prime is 13829741. The next prime is 13829773. The reversal of 13829765 is 56792831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56792831 = 41 ⋅1385191.

It can be written as a sum of positive squares in 2 ways, for example, as 5262436 + 8567329 = 2294^2 + 2927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13829765 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, 1382972 + ... + 1382981.

It is an arithmetic number, because the mean of its divisors is an integer number (4148931).

Almost surely, 2^13829765 is an apocalyptic number.

It is an amenable number.

13829765 is a deficient number, since it is larger than the sum of its proper divisors (2765959).

13829765 is an equidigital number, since it uses as much as digits as its factorization.

13829765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765958.

The product of its digits is 90720, while the sum is 41.

The square root of 13829765 is about 3718.8392006109. The cubic root of 13829765 is about 240.0333576319.

The spelling of 13829765 in words is "thirteen million, eight hundred twenty-nine thousand, seven hundred sixty-five".