606658 has 8 divisors (see below), whose sum is σ = 980028. Its totient is φ = 279984.

The previous prime is 606653. The next prime is 606659. The reversal of 606658 is 856606.

It can be written as a sum of positive squares in 2 ways, for example, as 471969 + 134689 = 687^2 + 367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (606653) by changing a digit.

606658 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11641 + ... + 11692.

2⁶⁰⁶⁶⁵⁸ is an apocalyptic number.

606658 is a deficient number, since it is larger than the sum of its proper divisors (373370).

606658 is a wasteful number, since it uses less digits than its factorization.

606658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23348.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 606658 is about 778.8825328636. The cubic root of 606658 is about 84.6540959974.

The spelling of 606658 in words is "six hundred six thousand, six hundred fifty-eight".