8928197091 has 48 divisors (see below), whose sum is σ = 14421109248. Its totient is φ = 5277096000.

The previous prime is 8928197077. The next prime is 8928197119. The reversal of 8928197091 is 1907918298.

It is not a de Polignac number, because 8928197091 - 2⁹ = 8928196579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8928197011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 663270 + ... + 676596.

It is an arithmetic number, because the mean of its divisors is an integer number (300439776).

Almost surely, 2^8928197091 is an apocalyptic number.

8928197091 is a deficient number, since it is larger than the sum of its proper divisors (5492912157).

8928197091 is a wasteful number, since it uses less digits than its factorization.

8928197091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13512 (or 13509 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The square root of 8928197091 is about 94489.1374233038. The cubic root of 8928197091 is about 2074.5373403872.

The spelling of 8928197091 in words is "eight billion, nine hundred twenty-eight million, one hundred ninety-seven thousand, ninety-one".