11947039 has 8 divisors (see below), whose sum is σ = 13623120. Its totient is φ = 10379136.

The previous prime is 11947037. The next prime is 11947049. The reversal of 11947039 is 93074911.

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 11947039 - 2¹ = 11947037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11946995 and 11947013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11947037) 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 7 ways as a sum of consecutive naturals, for example, 26809 + ... + 27250.

It is an arithmetic number, because the mean of its divisors is an integer number (1702890).

Almost surely, 2^11947039 is an apocalyptic number.

11947039 is a deficient number, since it is larger than the sum of its proper divisors (1676081).

11947039 is a wasteful number, since it uses less digits than its factorization.

11947039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54089.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 11947039 is about 3456.4489002443. The cubic root of 11947039 is about 228.6055450749.

The spelling of 11947039 in words is "eleven million, nine hundred forty-seven thousand, thirty-nine".