606521 has 2 divisors, whose sum is σ = 606522. Its totient is φ = 606520.

The previous prime is 606503. The next prime is 606527. The reversal of 606521 is 125606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 287296 = 565^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 606521 - 2¹⁰ = 605497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 606493 and 606502.

It is not a weakly prime, because it can be changed into another prime (606527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303260 + 303261.

It is an arithmetic number, because the mean of its divisors is an integer number (303261).

2⁶⁰⁶⁵²¹ is an apocalyptic number.

It is an amenable number.

606521 is a deficient number, since it is larger than the sum of its proper divisors (1).

606521 is an equidigital number, since it uses as much as digits as its factorization.

606521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 606521 is about 778.7945813884. The cubic root of 606521 is about 84.6477231128.

The spelling of 606521 in words is "six hundred six thousand, five hundred twenty-one".