80868843 has 12 divisors (see below), whose sum is σ = 127429848. Its totient is φ = 49011360.

The previous prime is 80868841. The next prime is 80868857. The reversal of 80868843 is 34886808.

It is not a de Polignac number, because 80868843 - 2¹ = 80868841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80868841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408330 + ... + 408527.

It is an arithmetic number, because the mean of its divisors is an integer number (10619154).

Almost surely, 2^80868843 is an apocalyptic number.

80868843 is a deficient number, since it is larger than the sum of its proper divisors (46561005).

80868843 is a wasteful number, since it uses less digits than its factorization.

80868843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816874 (or 816871 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 80868843 is about 8992.7105479939. The cubic root of 80868843 is about 432.4412126764.

The spelling of 80868843 in words is "eighty million, eight hundred sixty-eight thousand, eight hundred forty-three".