606405 has 8 divisors (see below), whose sum is σ = 970272. Its totient is φ = 323408.

The previous prime is 606383. The next prime is 606413. The reversal of 606405 is 504606.

606405 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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 606405 - 2⁶ = 606341 is a prime.

It is an Ulam number.

606405 is strictly pandigital in base 7.

It is a Curzon 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 606405.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20199 + ... + 20228.

It is an arithmetic number, because the mean of its divisors is an integer number (121284).

2⁶⁰⁶⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

606405 is a deficient number, since it is larger than the sum of its proper divisors (363867).

606405 is a wasteful number, since it uses less digits than its factorization.

606405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40435.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 606405 is about 778.7201037600. The cubic root of 606405 is about 84.6423263434.

The spelling of 606405 in words is "six hundred six thousand, four hundred five".