11913839 has 8 divisors (see below), whose sum is σ = 14208000. Its totient is φ = 9767736.

The previous prime is 11913823. The next prime is 11913841. The reversal of 11913839 is 93831911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11913839 - 2⁴ = 11913823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11913799 and 11913808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913899) 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, 36839 + ... + 37160.

It is an arithmetic number, because the mean of its divisors is an integer number (1776000).

Almost surely, 2^11913839 is an apocalyptic number.

11913839 is a deficient number, since it is larger than the sum of its proper divisors (2294161).

11913839 is an equidigital number, since it uses as much as digits as its factorization.

11913839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74029.

The product of its digits is 5832, while the sum is 35.

The square root of 11913839 is about 3451.6429421364. The cubic root of 11913839 is about 228.3935889188.

The spelling of 11913839 in words is "eleven million, nine hundred thirteen thousand, eight hundred thirty-nine".