806869 has 8 divisors (see below), whose sum is σ = 935360. Its totient is φ = 681696.

The previous prime is 806857. The next prime is 806893. The reversal of 806869 is 968608.

806869 = 67² + 68² + ... + 139².

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

It is a cyclic number.

It is not a de Polignac number, because 806869 - 2¹⁷ = 675797 is a prime.

It is a super-2 number, since 2×806869² = 1302075166322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279 + ... + 1300.

It is an arithmetic number, because the mean of its divisors is an integer number (116920).

2⁸⁰⁶⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

806869 is a deficient number, since it is larger than the sum of its proper divisors (128491).

806869 is a wasteful number, since it uses less digits than its factorization.

806869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 806869 is about 898.2588713728. The cubic root of 806869 is about 93.0967121264.

The spelling of 806869 in words is "eight hundred six thousand, eight hundred sixty-nine".