80928768 has 112 divisors (see below), whose sum is σ = 224119440. Its totient is φ = 25952256.

The previous prime is 80928767. The next prime is 80928773. The reversal of 80928768 is 86782908.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80928767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909268 + ... + 909356.

Almost surely, 2^80928768 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 80928768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112059720).

80928768 is an abundant number, since it is smaller than the sum of its proper divisors (143190672).

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

80928768 is an equidigital number, since it uses as much as digits as its factorization.

80928768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 80928768 is about 8996.0417962568. The cubic root of 80928768 is about 432.5480013994.

The spelling of 80928768 in words is "eighty million, nine hundred twenty-eight thousand, seven hundred sixty-eight".