80966856 has 32 divisors (see below), whose sum is σ = 202708800. Its totient is φ = 26950080.

The previous prime is 80966839. The next prime is 80966857. The reversal of 80966856 is 65866908.

It is not an unprimeable number, because it can be changed into a prime (80966857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18126 + ... + 22146.

It is an arithmetic number, because the mean of its divisors is an integer number (6334650).

Almost surely, 2^80966856 is an apocalyptic number.

It is an amenable number.

80966856 is an abundant number, since it is smaller than the sum of its proper divisors (121741944).

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

80966856 is a wasteful number, since it uses less digits than its factorization.

80966856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869 (or 4865 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 80966856 is about 8998.1584782665. The cubic root of 80966856 is about 432.6158483253.

The spelling of 80966856 in words is "eighty million, nine hundred sixty-six thousand, eight hundred fifty-six".