80687 has 2 divisors, whose sum is σ = 80688. Its totient is φ = 80686.

The previous prime is 80683. The next prime is 80701. The reversal of 80687 is 78608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80687 - 2² = 80683 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 80687.

It is not a weakly prime, because it can be changed into another prime (80681) by changing a digit.

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 as a sum of consecutive naturals, namely, 40343 + 40344.

It is an arithmetic number, because the mean of its divisors is an integer number (40344).

2⁸⁰⁶⁸⁷ is an apocalyptic number.

80687 is a deficient number, since it is larger than the sum of its proper divisors (1).

80687 is an equidigital number, since it uses as much as digits as its factorization.

80687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 80687 is about 284.0545722216. The cubic root of 80687 is about 43.2116837968.

It can be divided in two parts, 80 and 687, that added together give a palindrome (767).

The spelling of 80687 in words is "eighty thousand, six hundred eighty-seven".