822687012 has 36 divisors (see below), whose sum is σ = 2376652096. Its totient is φ = 235053360.

The previous prime is 822687007. The next prime is 822687067. The reversal of 822687012 is 210786228.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 in 11 ways as a sum of consecutive naturals, for example, 1632064 + ... + 1632567.

Almost surely, 2^822687012 is an apocalyptic number.

It is an amenable number.

822687012 is an abundant number, since it is smaller than the sum of its proper divisors (1553965084).

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

822687012 is a wasteful number, since it uses less digits than its factorization.

822687012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264648 (or 3264643 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 822687012 is about 28682.5210189063. The cubic root of 822687012 is about 937.0114121850.

The spelling of 822687012 in words is "eight hundred twenty-two million, six hundred eighty-seven thousand, twelve".