80715712 has 84 divisors (see below), whose sum is σ = 201340720. Its totient is φ = 31426560.

The previous prime is 80715709. The next prime is 80715721. The reversal of 80715712 is 21751708.

It is a happy number.

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, 53464 + ... + 54952.

Almost surely, 2^80715712 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 80715712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100670360).

80715712 is an abundant number, since it is smaller than the sum of its proper divisors (120625008).

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

80715712 is a wasteful number, since it uses less digits than its factorization.

80715712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 80715712 is about 8984.1923398823. The cubic root of 80715712 is about 432.1680873109.

The spelling of 80715712 in words is "eighty million, seven hundred fifteen thousand, seven hundred twelve".