822047066 has 8 divisors (see below), whose sum is σ = 1256336244. Its totient is φ = 403268320.

The previous prime is 822047047. The next prime is 822047069. The reversal of 822047066 is 660740228.

It can be written as a sum of positive squares in 2 ways, for example, as 732839041 + 89208025 = 27071^2 + 9445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×822047066² = 1351522757438416712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (822047069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3877475 + ... + 3877686.

Almost surely, 2^822047066 is an apocalyptic number.

822047066 is a deficient number, since it is larger than the sum of its proper divisors (434289178).

822047066 is a wasteful number, since it uses less digits than its factorization.

822047066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755216.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 822047066 is about 28671.3631695460. The cubic root of 822047066 is about 936.7683905400.

The spelling of 822047066 in words is "eight hundred twenty-two million, forty-seven thousand, sixty-six".