80704512 has 220 divisors, whose sum is σ = 277409440. Its totient is φ = 22892544.

The previous prime is 80704453. The next prime is 80704513. The reversal of 80704512 is 21540708.

80704512 is a `hidden beast` number, since 80 + 70 + 4 + 512 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80704513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 580539 + ... + 580677.

It is an arithmetic number, because the mean of its divisors is an integer number (1260952).

Almost surely, 2^80704512 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 80704512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138704720).

80704512 is an abundant number, since it is smaller than the sum of its proper divisors (196704928).

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

80704512 is a wasteful number, since it uses less digits than its factorization.

80704512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 80704512 is about 8983.5690012378. The cubic root of 80704512 is about 432.1480973719.

The spelling of 80704512 in words is "eighty million, seven hundred four thousand, five hundred twelve".