80820086 has 8 divisors (see below), whose sum is σ = 122303304. Its totient is φ = 40052320.

The previous prime is 80820067. The next prime is 80820097. The reversal of 80820086 is 68002808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178580 + ... + 179031.

It is an arithmetic number, because the mean of its divisors is an integer number (15287913).

Almost surely, 2^80820086 is an apocalyptic number.

80820086 is a deficient number, since it is larger than the sum of its proper divisors (41483218).

80820086 is a wasteful number, since it uses less digits than its factorization.

80820086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357726.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 80820086 is about 8989.9992213570. Note that the first 3 decimals coincide. The cubic root of 80820086 is about 432.3542868418.

The spelling of 80820086 in words is "eighty million, eight hundred twenty thousand, eighty-six".