80680585 has 4 divisors (see below), whose sum is σ = 96816708. Its totient is φ = 64544464.

The previous prime is 80680571. The next prime is 80680591. The reversal of 80680585 is 58508608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35844169 + 44836416 = 5987^2 + 6696^2 .

It is a cyclic number.

It is not a de Polignac number, because 80680585 - 2¹³ = 80672393 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 8068054 + ... + 8068063.

It is an arithmetic number, because the mean of its divisors is an integer number (24204177).

Almost surely, 2^80680585 is an apocalyptic number.

It is an amenable number.

80680585 is a deficient number, since it is larger than the sum of its proper divisors (16136123).

80680585 is a wasteful number, since it uses less digits than its factorization.

80680585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16136122.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 80680585 is about 8982.2371934836. The cubic root of 80680585 is about 432.1053858832.

The spelling of 80680585 in words is "eighty million, six hundred eighty thousand, five hundred eighty-five".