906605 has 8 divisors (see below), whose sum is σ = 1243392. Its totient is φ = 621648.

The previous prime is 906601. The next prime is 906613. The reversal of 906605 is 506609.

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 906605 - 2² = 906601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12917 + ... + 12986.

It is an arithmetic number, because the mean of its divisors is an integer number (155424).

2⁹⁰⁶⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

906605 is a deficient number, since it is larger than the sum of its proper divisors (336787).

906605 is a wasteful number, since it uses less digits than its factorization.

906605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25915.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 906605 is about 952.1580751115. The cubic root of 906605 is about 96.7845503312.

The spelling of 906605 in words is "nine hundred six thousand, six hundred five".