80543744 has 34 divisors (see below), whose sum is σ = 161217330. Its totient is φ = 40239104.

The previous prime is 80543741. The next prime is 80543753. The reversal of 80543744 is 44734508.

It can be written as a sum of positive squares in only one way, i.e., 80281600 + 262144 = 8960^2 + 512^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80543741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64922 + ... + 66150.

Almost surely, 2^80543744 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 80543744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80608665).

80543744 is an abundant number, since it is smaller than the sum of its proper divisors (80673586).

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

80543744 is an frugal number, since it uses more digits than its factorization.

80543744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 80543744 is about 8974.6166491945. The cubic root of 80543744 is about 431.8609520487.

The spelling of 80543744 in words is "eighty million, five hundred forty-three thousand, seven hundred forty-four".