80686850 has 24 divisors (see below), whose sum is σ = 151085568. Its totient is φ = 32058000.

The previous prime is 80686841. The next prime is 80686867. The reversal of 80686850 is 5868608.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80686798 and 80686807.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2207 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (6295232).

Almost surely, 2^80686850 is an apocalyptic number.

80686850 is a deficient number, since it is larger than the sum of its proper divisors (70398718).

80686850 is a wasteful number, since it uses less digits than its factorization.

80686850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 80686850 is about 8982.5859305659. The cubic root of 80686850 is about 432.1165701939.

The spelling of 80686850 in words is "eighty million, six hundred eighty-six thousand, eight hundred fifty".