822561696 has 384 divisors, whose sum is σ = 2821754880. Its totient is φ = 230630400.

The previous prime is 822561647. The next prime is 822561697. The reversal of 822561696 is 696165228.

822561696 is a `hidden beast` number, since 8 + 2 + 25 + 616 + 9 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (822561697) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11585341 + ... + 11585411.

It is an arithmetic number, because the mean of its divisors is an integer number (7348320).

Almost surely, 2^822561696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822561696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410877440).

822561696 is an abundant number, since it is smaller than the sum of its proper divisors (1999193184).

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

822561696 is a wasteful number, since it uses less digits than its factorization.

822561696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 163 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 822561696 is about 28680.3363997008. The cubic root of 822561696 is about 936.9638329383.

The spelling of 822561696 in words is "eight hundred twenty-two million, five hundred sixty-one thousand, six hundred ninety-six".