605717879 has 4 divisors (see below), whose sum is σ = 652311576. Its totient is φ = 559124184.

The previous prime is 605717869. The next prime is 605717881. The reversal of 605717879 is 978717506.

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 605717879 - 2⁴ = 605717863 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 (605717869) 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, 23296829 + ... + 23296854.

It is an arithmetic number, because the mean of its divisors is an integer number (163077894).

Almost surely, 2^605717879 is an apocalyptic number.

605717879 is a deficient number, since it is larger than the sum of its proper divisors (46593697).

605717879 is a wasteful number, since it uses less digits than its factorization.

605717879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46593696.

The product of its (nonzero) digits is 740880, while the sum is 50.

The square root of 605717879 is about 24611.3363919963. The cubic root of 605717879 is about 846.1034469161.

The spelling of 605717879 in words is "six hundred five million, seven hundred seventeen thousand, eight hundred seventy-nine".