80805982 has 8 divisors (see below), whose sum is σ = 122081400. Its totient is φ = 40112184.

The previous prime is 80805971. The next prime is 80806009. The reversal of 80805982 is 28950808.

It is a happy number.

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, 145057 + ... + 145612.

It is an arithmetic number, because the mean of its divisors is an integer number (15260175).

Almost surely, 2^80805982 is an apocalyptic number.

80805982 is a deficient number, since it is larger than the sum of its proper divisors (41275418).

80805982 is a wasteful number, since it uses less digits than its factorization.

80805982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290810.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 80805982 is about 8989.2147599220. The cubic root of 80805982 is about 432.3291351750.

The spelling of 80805982 in words is "eighty million, eight hundred five thousand, nine hundred eighty-two".