605684 has 12 divisors (see below), whose sum is σ = 1080324. Its totient is φ = 297024.

The previous prime is 605641. The next prime is 605687. The reversal of 605684 is 486506.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 183184 = 650^2 + 428^2 .

It is a super-3 number, since 3×605684³ = 666591173335960512, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605687) by changing a digit.

605684 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217 + ... + 1640.

It is an arithmetic number, because the mean of its divisors is an integer number (90027).

2⁶⁰⁵⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

605684 is a deficient number, since it is larger than the sum of its proper divisors (474640).

605684 is a wasteful number, since it uses less digits than its factorization.

605684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 605684 is about 778.2570269519. The cubic root of 605684 is about 84.6087671875.

The spelling of 605684 in words is "six hundred five thousand, six hundred eighty-four".