11779938 has 48 divisors (see below), whose sum is σ = 27168480. Its totient is φ = 3783240.

The previous prime is 11779921. The next prime is 11779961. The reversal of 11779938 is 83997711.

It is a junction number, because it is equal to n+sod(n) for n = 11779893 and 11779902.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51781 + ... + 52007.

It is an arithmetic number, because the mean of its divisors is an integer number (566010).

Almost surely, 2^11779938 is an apocalyptic number.

11779938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11779938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13584240).

11779938 is an abundant number, since it is smaller than the sum of its proper divisors (15388542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11779938 is a wasteful number, since it uses less digits than its factorization.

11779938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 263 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 11779938 is about 3432.1914282277. The cubic root of 11779938 is about 227.5347159516.

The spelling of 11779938 in words is "eleven million, seven hundred seventy-nine thousand, nine hundred thirty-eight".