8191768 has 48 divisors (see below), whose sum is σ = 17062920. Its totient is φ = 3684096.

The previous prime is 8191753. The next prime is 8191783. The reversal of 8191768 is 8671918.

It is an interprime number because it is at equal distance from previous prime (8191753) and next prime (8191783).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 8191768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98655 + ... + 98737.

Almost surely, 2^8191768 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 8191768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8531460).

8191768 is an abundant number, since it is smaller than the sum of its proper divisors (8871152).

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

8191768 is a wasteful number, since it uses less digits than its factorization.

8191768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 171 counting only the distinct ones).

The product of its digits is 24192, while the sum is 40.

The square root of 8191768 is about 2862.1264821807. The cubic root of 8191768 is about 201.5854649595.

The spelling of 8191768 in words is "eight million, one hundred ninety-one thousand, seven hundred sixty-eight".