806287 has 4 divisors (see below), whose sum is σ = 834120. Its totient is φ = 778456.

The previous prime is 806269. The next prime is 806291. The reversal of 806287 is 782608.

806287 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 806287 - 2⁷ = 806159 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806257) 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 in 3 ways as a sum of consecutive naturals, for example, 13873 + ... + 13930.

It is an arithmetic number, because the mean of its divisors is an integer number (208530).

2⁸⁰⁶²⁸⁷ is an apocalyptic number.

806287 is a deficient number, since it is larger than the sum of its proper divisors (27833).

806287 is a wasteful number, since it uses less digits than its factorization.

806287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27832.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 806287 is about 897.9348528707. The cubic root of 806287 is about 93.0743229822.

The spelling of 806287 in words is "eight hundred six thousand, two hundred eighty-seven".