806491212 has 12 divisors (see below), whose sum is σ = 1881812856. Its totient is φ = 268830400.

The previous prime is 806491199. The next prime is 806491229. The reversal of 806491212 is 212194608.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33603789 + ... + 33603812.

It is an arithmetic number, because the mean of its divisors is an integer number (156817738).

Almost surely, 2^806491212 is an apocalyptic number.

It is an amenable number.

806491212 is an abundant number, since it is smaller than the sum of its proper divisors (1075321644).

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

806491212 is a wasteful number, since it uses less digits than its factorization.

806491212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67207608 (or 67207606 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 806491212 is about 28398.7889178394. The cubic root of 806491212 is about 930.8218010556.

The spelling of 806491212 in words is "eight hundred six million, four hundred ninety-one thousand, two hundred twelve".