605611 has 4 divisors (see below), whose sum is σ = 620424. Its totient is φ = 590800.

The previous prime is 605609. The next prime is 605617. The reversal of 605611 is 116506.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 605611 - 2¹ = 605609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605617) 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, 7345 + ... + 7426.

It is an arithmetic number, because the mean of its divisors is an integer number (155106).

2⁶⁰⁵⁶¹¹ is an apocalyptic number.

605611 is a deficient number, since it is larger than the sum of its proper divisors (14813).

605611 is a wasteful number, since it uses less digits than its factorization.

605611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14812.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 605611 is about 778.2101258658. The cubic root of 605611 is about 84.6053678967.

It can be divided in two parts, 60 and 5611, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 605611 in words is "six hundred five thousand, six hundred eleven".