906559 has 4 divisors (see below), whose sum is σ = 959904. Its totient is φ = 853216.

The previous prime is 906557. The next prime is 906589. The reversal of 906559 is 955609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955609 = 547 ⋅1747.

It is a cyclic number.

It is not a de Polignac number, because 906559 - 2¹ = 906557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26647 + ... + 26680.

It is an arithmetic number, because the mean of its divisors is an integer number (239976).

2⁹⁰⁶⁵⁵⁹ is an apocalyptic number.

906559 is a deficient number, since it is larger than the sum of its proper divisors (53345).

906559 is a wasteful number, since it uses less digits than its factorization.

906559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53344.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 906559 is about 952.1339191521. The cubic root of 906559 is about 96.7829133947.

The spelling of 906559 in words is "nine hundred six thousand, five hundred fifty-nine".