80543826 has 48 divisors (see below), whose sum is σ = 191662848. Its totient is φ = 24242400.

The previous prime is 80543821. The next prime is 80543833. The reversal of 80543826 is 62834508.

It is not an unprimeable number, because it can be changed into a prime (80543821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29791 + ... + 32381.

It is an arithmetic number, because the mean of its divisors is an integer number (3992976).

Almost surely, 2^80543826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80543826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95831424).

80543826 is an abundant number, since it is smaller than the sum of its proper divisors (111119022).

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

80543826 is a wasteful number, since it uses less digits than its factorization.

80543826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2764 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 80543826 is about 8974.6212176336. The cubic root of 80543826 is about 431.8610986050.

The spelling of 80543826 in words is "eighty million, five hundred forty-three thousand, eight hundred twenty-six".