2821087792 has 80 divisors (see below), whose sum is σ = 5824484352. Its totient is φ = 1321332480.

The previous prime is 2821087771. The next prime is 2821087807. The reversal of 2821087792 is 2977801282.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 6367923 + ... + 6368365.

Almost surely, 2^2821087792 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 2821087792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2912242176).

2821087792 is an abundant number, since it is smaller than the sum of its proper divisors (3003396560).

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

2821087792 is a wasteful number, since it uses less digits than its factorization.

2821087792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 2821087792 is about 53113.9133561066. The cubic root of 2821087792 is about 1412.9892806965.

The spelling of 2821087792 in words is "two billion, eight hundred twenty-one million, eighty-seven thousand, seven hundred ninety-two".