80543828 has 24 divisors (see below), whose sum is σ = 146576640. Its totient is φ = 38684160.

The previous prime is 80543821. The next prime is 80543833. The reversal of 80543828 is 82834508.

It is a junction number, because it is equal to n+sod(n) for n = 80543791 and 80543800.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14900 + ... + 19572.

It is an arithmetic number, because the mean of its divisors is an integer number (6107360).

Almost surely, 2^80543828 is an apocalyptic number.

It is an amenable number.

80543828 is a deficient number, since it is larger than the sum of its proper divisors (66032812).

80543828 is a wasteful number, since it uses less digits than its factorization.

80543828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847 (or 4845 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 80543828 is about 8974.6213290590. The cubic root of 80543828 is about 431.8611021795.

The spelling of 80543828 in words is "eighty million, five hundred forty-three thousand, eight hundred twenty-eight".