8193989028 has 24 divisors (see below), whose sum is σ = 19245929920. Its totient is φ = 2713240800.

The previous prime is 8193988951. The next prime is 8193989033. The reversal of 8193989028 is 8209893918.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2259223 + ... + 2262846.

Almost surely, 2^8193989028 is an apocalyptic number.

It is an amenable number.

8193989028 is an abundant number, since it is smaller than the sum of its proper divisors (11051940892).

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

8193989028 is a wasteful number, since it uses less digits than its factorization.

8193989028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522227 (or 4522225 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 57.

The square root of 8193989028 is about 90520.6552561348. The cubic root of 8193989028 is about 2016.0368188586.

The spelling of 8193989028 in words is "eight billion, one hundred ninety-three million, nine hundred eighty-nine thousand, twenty-eight".