806931 has 6 divisors (see below), whose sum is σ = 1165580. Its totient is φ = 537948.

The previous prime is 806929. The next prime is 806941. The reversal of 806931 is 139608.

It is not a de Polignac number, because 806931 - 2¹ = 806929 is a prime.

It is a super-2 number, since 2×806931² = 1302275277522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806895 and 806904.

It is not an unprimeable number, because it can be changed into a prime (806941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44821 + ... + 44838.

2⁸⁰⁶⁹³¹ is an apocalyptic number.

806931 is a deficient number, since it is larger than the sum of its proper divisors (358649).

806931 is a wasteful number, since it uses less digits than its factorization.

806931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89665 (or 89662 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 806931 is about 898.2933819193. The cubic root of 806931 is about 93.0990965896.

It can be divided in two parts, 8069 and 31, that added together give a square (8100 = 90²).

The spelling of 806931 in words is "eight hundred six thousand, nine hundred thirty-one".