13853943 has 8 divisors (see below), whose sum is σ = 20524400. Its totient is φ = 9235944.

The previous prime is 13853927. The next prime is 13853951. The reversal of 13853943 is 34935831.

It is not a de Polignac number, because 13853943 - 2⁴ = 13853927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13853898 and 13853907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13853923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256528 + ... + 256581.

It is an arithmetic number, because the mean of its divisors is an integer number (2565550).

Almost surely, 2^13853943 is an apocalyptic number.

13853943 is a deficient number, since it is larger than the sum of its proper divisors (6670457).

13853943 is an equidigital number, since it uses as much as digits as its factorization.

13853943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513118 (or 513112 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13853943 is about 3722.0885266205. The cubic root of 13853943 is about 240.1731562904.

The spelling of 13853943 in words is "thirteen million, eight hundred fifty-three thousand, nine hundred forty-three".