80347872 has 72 divisors (see below), whose sum is σ = 231863688. Its totient is φ = 24344320.

The previous prime is 80347867. The next prime is 80347873. The reversal of 80347872 is 27874308.

It is a self number, because there is not a number n which added to its sum of digits gives 80347872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80347873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8158 + ... + 15074.

It is an arithmetic number, because the mean of its divisors is an integer number (3220329).

Almost surely, 2^80347872 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 80347872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115931844).

80347872 is an abundant number, since it is smaller than the sum of its proper divisors (151515816).

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

80347872 is a wasteful number, since it uses less digits than its factorization.

80347872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952 (or 6933 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 80347872 is about 8963.6974513869. The cubic root of 80347872 is about 431.5105911673.

The spelling of 80347872 in words is "eighty million, three hundred forty-seven thousand, eight hundred seventy-two".