606865 has 12 divisors (see below), whose sum is σ = 847476. Its totient is φ = 415968.

The previous prime is 606863. The next prime is 606899. The reversal of 606865 is 568606.

It can be written as a sum of positive squares in 2 ways, for example, as 261121 + 345744 = 511^2 + 588^2 .

It is not a de Polignac number, because 606865 - 2¹ = 606863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (606863) 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 11 ways as a sum of consecutive naturals, for example, 994 + ... + 1483.

It is an arithmetic number, because the mean of its divisors is an integer number (70623).

2⁶⁰⁶⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

606865 is a deficient number, since it is larger than the sum of its proper divisors (240611).

606865 is a wasteful number, since it uses less digits than its factorization.

606865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 606865 is about 779.0154042123. The cubic root of 606865 is about 84.6637232807.

The spelling of 606865 in words is "six hundred six thousand, eight hundred sixty-five".