80805885 has 8 divisors (see below), whose sum is σ = 129289440. Its totient is φ = 43096464.

The previous prime is 80805883. The next prime is 80805887. The reversal of 80805885 is 58850808.

It is an interprime number because it is at equal distance from previous prime (80805883) and next prime (80805887).

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

It is not a de Polignac number, because 80805885 - 2¹ = 80805883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80805883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2693515 + ... + 2693544.

It is an arithmetic number, because the mean of its divisors is an integer number (16161180).

Almost surely, 2^80805885 is an apocalyptic number.

It is an amenable number.

80805885 is a deficient number, since it is larger than the sum of its proper divisors (48483555).

80805885 is a wasteful number, since it uses less digits than its factorization.

80805885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387067.

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 80805885 is about 8989.2093645659. The cubic root of 80805885 is about 432.3289621848.

The spelling of 80805885 in words is "eighty million, eight hundred five thousand, eight hundred eighty-five".