11971937 has 8 divisors (see below), whose sum is σ = 12539904. Its totient is φ = 11407968.

The previous prime is 11971913. The next prime is 11971943. The reversal of 11971937 is 73917911.

11971937 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11971937 - 2⁸ = 11971681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11971937.

It is not an unprimeable number, because it can be changed into a prime (11971987) 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, 6368 + ... + 8030.

It is an arithmetic number, because the mean of its divisors is an integer number (1567488).

Almost surely, 2^11971937 is an apocalyptic number.

It is an amenable number.

11971937 is a deficient number, since it is larger than the sum of its proper divisors (567967).

11971937 is a wasteful number, since it uses less digits than its factorization.

11971937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999.

The product of its digits is 11907, while the sum is 38.

The square root of 11971937 is about 3460.0486990792. The cubic root of 11971937 is about 228.7642418995.

The spelling of 11971937 in words is "eleven million, nine hundred seventy-one thousand, nine hundred thirty-seven".