80285805 has 24 divisors (see below), whose sum is σ = 139400352. Its totient is φ = 42745824.

The previous prime is 80285789. The next prime is 80285827. The reversal of 80285805 is 50858208.

It is not a de Polignac number, because 80285805 - 2⁴ = 80285789 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80285805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34282 + ... + 36548.

It is an arithmetic number, because the mean of its divisors is an integer number (5808348).

Almost surely, 2^80285805 is an apocalyptic number.

It is an amenable number.

80285805 is a deficient number, since it is larger than the sum of its proper divisors (59114547).

80285805 is a wasteful number, since it uses less digits than its factorization.

80285805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065 (or 3062 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 80285805 is about 8960.2346509453. The cubic root of 80285805 is about 431.3994516665.

The spelling of 80285805 in words is "eighty million, two hundred eighty-five thousand, eight hundred five".