806917 has 2 divisors, whose sum is σ = 806918. Its totient is φ = 806916.

The previous prime is 806903. The next prime is 806929. The reversal of 806917 is 719608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527076 + 279841 = 726^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 806917 - 2⁷ = 806789 is a prime.

It is a super-2 number, since 2×806917² = 1302230089778, which contains 22 as substring.

It is a Chen prime.

806917 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403458 + 403459.

It is an arithmetic number, because the mean of its divisors is an integer number (403459).

2⁸⁰⁶⁹¹⁷ is an apocalyptic number.

It is an amenable number.

806917 is a deficient number, since it is larger than the sum of its proper divisors (1).

806917 is an equidigital number, since it uses as much as digits as its factorization.

806917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 806917 is about 898.2855893311. The cubic root of 806917 is about 93.0985581731.

The spelling of 806917 in words is "eight hundred six thousand, nine hundred seventeen".