2013933809 has 4 divisors (see below), whose sum is σ = 2021591616. Its totient is φ = 2006276004.

The previous prime is 2013933793. The next prime is 2013933821. The reversal of 2013933809 is 9083393102.

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.

It is a cyclic number.

It is not a de Polignac number, because 2013933809 - 2⁴ = 2013933793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013935809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3828509 + ... + 3829034.

It is an arithmetic number, because the mean of its divisors is an integer number (505397904).

Almost surely, 2^2013933809 is an apocalyptic number.

It is an amenable number.

2013933809 is a deficient number, since it is larger than the sum of its proper divisors (7657807).

2013933809 is an equidigital number, since it uses as much as digits as its factorization.

2013933809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657806.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 2013933809 is about 44876.8738773101. The cubic root of 2013933809 is about 1262.8401977565.

The spelling of 2013933809 in words is "two billion, thirteen million, nine hundred thirty-three thousand, eight hundred nine".