866967212 has 6 divisors (see below), whose sum is σ = 1517192628. Its totient is φ = 433483604.

The previous prime is 866967191. The next prime is 866967223. The reversal of 866967212 is 212769668.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108370898 + ... + 108370905.

It is an arithmetic number, because the mean of its divisors is an integer number (252865438).

Almost surely, 2^866967212 is an apocalyptic number.

It is an amenable number.

866967212 is a deficient number, since it is larger than the sum of its proper divisors (650225416).

866967212 is a wasteful number, since it uses less digits than its factorization.

866967212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216741807 (or 216741805 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 866967212 is about 29444.3069539767. The cubic root of 866967212 is about 953.5296991734.

The spelling of 866967212 in words is "eight hundred sixty-six million, nine hundred sixty-seven thousand, two hundred twelve".