605720617 has 8 divisors (see below), whose sum is σ = 632658816. Its totient is φ = 578832672.

The previous prime is 605720603. The next prime is 605720641. The reversal of 605720617 is 716027506.

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 605720617 - 2¹¹ = 605718569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605726617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13228 + ... + 37234.

It is an arithmetic number, because the mean of its divisors is an integer number (79082352).

Almost surely, 2^605720617 is an apocalyptic number.

It is an amenable number.

605720617 is a deficient number, since it is larger than the sum of its proper divisors (26938199).

605720617 is a wasteful number, since it uses less digits than its factorization.

605720617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25127.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 605720617 is about 24611.3920167064. The cubic root of 605720617 is about 846.1047217823.

The spelling of 605720617 in words is "six hundred five million, seven hundred twenty thousand, six hundred seventeen".