606861 has 6 divisors (see below), whose sum is σ = 876590. Its totient is φ = 404568.

The previous prime is 606857. The next prime is 606863. The reversal of 606861 is 168606.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 281961 = 570^2 + 531^2 .

It is not a de Polignac number, because 606861 - 2² = 606857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 606861.

It is not an unprimeable number, because it can be changed into a prime (606863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33706 + ... + 33723.

2⁶⁰⁶⁸⁶¹ is an apocalyptic number.

It is an amenable number.

606861 is a deficient number, since it is larger than the sum of its proper divisors (269729).

606861 is a wasteful number, since it uses less digits than its factorization.

606861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67435 (or 67432 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 606861 is about 779.0128368647. The cubic root of 606861 is about 84.6635372670.

The spelling of 606861 in words is "six hundred six thousand, eight hundred sixty-one".