605671 has 4 divisors (see below), whose sum is σ = 660744. Its totient is φ = 550600.

The previous prime is 605641. The next prime is 605687. The reversal of 605671 is 176506.

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 605671 - 2⁵ = 605639 is a prime.

It is a Duffinian number.

605671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27520 + ... + 27541.

It is an arithmetic number, because the mean of its divisors is an integer number (165186).

2⁶⁰⁵⁶⁷¹ is an apocalyptic number.

605671 is a deficient number, since it is larger than the sum of its proper divisors (55073).

605671 is a wasteful number, since it uses less digits than its factorization.

605671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55072.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 605671 is about 778.2486749105. The cubic root of 605671 is about 84.6081618543.

The spelling of 605671 in words is "six hundred five thousand, six hundred seventy-one".