11959938 has 12 divisors (see below), whose sum is σ = 25913238. Its totient is φ = 3986640.

The previous prime is 11959921. The next prime is 11959939. The reversal of 11959938 is 83995911.

It can be written as a sum of positive squares in only one way, i.e., 9345249 + 2614689 = 3057^2 + 1617^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11959893 and 11959902.

It is not an unprimeable number, because it can be changed into a prime (11959939) 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 5 ways as a sum of consecutive naturals, for example, 332203 + ... + 332238.

Almost surely, 2^11959938 is an apocalyptic number.

11959938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11959938 is an abundant number, since it is smaller than the sum of its proper divisors (13953300).

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

11959938 is a wasteful number, since it uses less digits than its factorization.

11959938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664449 (or 664446 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 11959938 is about 3458.3143292651. The cubic root of 11959938 is about 228.6877892280.

The spelling of 11959938 in words is "eleven million, nine hundred fifty-nine thousand, nine hundred thirty-eight".