822398004 has 36 divisors (see below), whose sum is σ = 2080747396. Its totient is φ = 273881088.

The previous prime is 822397997. The next prime is 822398011. The reversal of 822398004 is 400893228.

It is an interprime number because it is at equal distance from previous prime (822397997) and next prime (822398011).

It can be written as a sum of positive squares in 2 ways, for example, as 241491600 + 580906404 = 15540^2 + 24102^2 .

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 a self number, because there is not a number n which added to its sum of digits gives 822398004.

It is a congruent number.

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, 31602 + ... + 51414.

Almost surely, 2^822398004 is an apocalyptic number.

It is an amenable number.

822398004 is an abundant number, since it is smaller than the sum of its proper divisors (1258349392).

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

822398004 is a wasteful number, since it uses less digits than its factorization.

822398004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20976 (or 20971 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 822398004 is about 28677.4825254938. The cubic root of 822398004 is about 936.9016760369.

The spelling of 822398004 in words is "eight hundred twenty-two million, three hundred ninety-eight thousand, four".