80756760 has 128 divisors (see below), whose sum is σ = 279429120. Its totient is φ = 18289152.

The previous prime is 80756729. The next prime is 80756771. The reversal of 80756760 is 6765708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106302 + ... + 107058.

It is an arithmetic number, because the mean of its divisors is an integer number (2183040).

Almost surely, 2^80756760 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 80756760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139714560).

80756760 is an abundant number, since it is smaller than the sum of its proper divisors (198672360).

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

80756760 is a wasteful number, since it uses less digits than its factorization.

80756760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 80756760 is about 8986.4765063956. The cubic root of 80756760 is about 432.2413346332.

The spelling of 80756760 in words is "eighty million, seven hundred fifty-six thousand, seven hundred sixty".