8073021836 has 24 divisors (see below), whose sum is σ = 15418045440. Its totient is φ = 3668147600.

The previous prime is 8073021763. The next prime is 8073021841. The reversal of 8073021836 is 6381203708.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8073021836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85445 + ... + 153123.

It is an arithmetic number, because the mean of its divisors is an integer number (642418560).

Almost surely, 2^8073021836 is an apocalyptic number.

It is an amenable number.

8073021836 is a deficient number, since it is larger than the sum of its proper divisors (7345023604).

8073021836 is a wasteful number, since it uses less digits than its factorization.

8073021836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70405 (or 70403 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 8073021836 is about 89849.9963049526. The cubic root of 8073021836 is about 2006.0667317755.

The spelling of 8073021836 in words is "eight billion, seventy-three million, twenty-one thousand, eight hundred thirty-six".