605679 has 4 divisors (see below), whose sum is σ = 807576. Its totient is φ = 403784.

The previous prime is 605641. The next prime is 605687. The reversal of 605679 is 976506.

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 605679 - 2⁷ = 605551 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605609) 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, 100944 + ... + 100949.

It is an arithmetic number, because the mean of its divisors is an integer number (201894).

2⁶⁰⁵⁶⁷⁹ is an apocalyptic number.

605679 is a deficient number, since it is larger than the sum of its proper divisors (201897).

605679 is a wasteful number, since it uses less digits than its factorization.

605679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201896.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 605679 is about 778.2538146389. The cubic root of 605679 is about 84.6085343681.

The spelling of 605679 in words is "six hundred five thousand, six hundred seventy-nine".