11913738 has 8 divisors (see below), whose sum is σ = 23827488. Its totient is φ = 3971244.

The previous prime is 11913731. The next prime is 11913757. The reversal of 11913738 is 83731911.

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

11913738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11913699 and 11913708.

It is not an unprimeable number, because it can be changed into a prime (11913731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992806 + ... + 992817.

It is an arithmetic number, because the mean of its divisors is an integer number (2978436).

Almost surely, 2^11913738 is an apocalyptic number.

11913738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11913738 is a wasteful number, since it uses less digits than its factorization.

11913738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985628.

The product of its digits is 4536, while the sum is 33.

The square root of 11913738 is about 3451.6283113916. The cubic root of 11913738 is about 228.3929435120.

The spelling of 11913738 in words is "eleven million, nine hundred thirteen thousand, seven hundred thirty-eight".