11670971 has 12 divisors (see below), whose sum is σ = 12886128. Its totient is φ = 10561824.

The previous prime is 11670961. The next prime is 11670977. The reversal of 11670971 is 17907611.

It is a de Polignac number, because none of the positive numbers 2^k-11670971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11670977) 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 11 ways as a sum of consecutive naturals, for example, 8306 + ... + 9608.

It is an arithmetic number, because the mean of its divisors is an integer number (1073844).

Almost surely, 2^11670971 is an apocalyptic number.

11670971 is a deficient number, since it is larger than the sum of its proper divisors (1215157).

11670971 is a wasteful number, since it uses less digits than its factorization.

11670971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 11670971 is about 3416.2802870959. The cubic root of 11670971 is about 226.8309595599.

The spelling of 11670971 in words is "eleven million, six hundred seventy thousand, nine hundred seventy-one".