806219912 has 8 divisors (see below), whose sum is σ = 1511662350. Its totient is φ = 403109952.

The previous prime is 806219881. The next prime is 806219959. The reversal of 806219912 is 219912608.

It can be written as a sum of positive squares in only one way, i.e., 806219236 + 676 = 28394^2 + 26^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50388737 + ... + 50388752.

Almost surely, 2^806219912 is an apocalyptic number.

It is an amenable number.

806219912 is a deficient number, since it is larger than the sum of its proper divisors (705442438).

806219912 is a wasteful number, since it uses less digits than its factorization.

806219912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100777495 (or 100777491 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 806219912 is about 28394.0119039209. The cubic root of 806219912 is about 930.7174146002.

The spelling of 806219912 in words is "eight hundred six million, two hundred nineteen thousand, nine hundred twelve".