605613 has 16 divisors (see below), whose sum is σ = 861696. Its totient is φ = 377520.

The previous prime is 605609. The next prime is 605617. The reversal of 605613 is 316506.

It is an interprime number because it is at equal distance from previous prime (605609) and next prime (605617).

It is not a de Polignac number, because 605613 - 2² = 605609 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 605613.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 4558 + ... + 4688.

It is an arithmetic number, because the mean of its divisors is an integer number (53856).

2⁶⁰⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

605613 is a deficient number, since it is larger than the sum of its proper divisors (256083).

605613 is a wasteful number, since it uses less digits than its factorization.

605613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 605613 is about 778.2114108647. The cubic root of 605613 is about 84.6054610316.

The spelling of 605613 in words is "six hundred five thousand, six hundred thirteen".