80766798 has 48 divisors (see below), whose sum is σ = 194406480. Its totient is φ = 22278144.

The previous prime is 80766797. The next prime is 80766817. The reversal of 80766798 is 89766708.

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 80766798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80766797) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3790 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (4050135).

Almost surely, 2^80766798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80766798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97203240).

80766798 is an abundant number, since it is smaller than the sum of its proper divisors (113639682).

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

80766798 is a wasteful number, since it uses less digits than its factorization.

80766798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521 (or 9514 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 80766798 is about 8987.0349949246. The cubic root of 80766798 is about 432.2592429741.

The spelling of 80766798 in words is "eighty million, seven hundred sixty-six thousand, seven hundred ninety-eight".