13829785 has 16 divisors (see below), whose sum is σ = 17424000. Its totient is φ = 10517760.

The previous prime is 13829773. The next prime is 13829821. The reversal of 13829785 is 58792831.

It is not a de Polignac number, because 13829785 - 2⁷ = 13829657 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27466 + ... + 27964.

It is an arithmetic number, because the mean of its divisors is an integer number (1089000).

Almost surely, 2^13829785 is an apocalyptic number.

It is an amenable number.

13829785 is a deficient number, since it is larger than the sum of its proper divisors (3594215).

13829785 is a wasteful number, since it uses less digits than its factorization.

13829785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 120960, while the sum is 43.

The square root of 13829785 is about 3718.8418896210. The cubic root of 13829785 is about 240.0334733404.

The spelling of 13829785 in words is "thirteen million, eight hundred twenty-nine thousand, seven hundred eighty-five".