608669 has 2 divisors, whose sum is σ = 608670. Its totient is φ = 608668.

The previous prime is 608659. The next prime is 608677. The reversal of 608669 is 966806.

608669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 289444 = 565^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 608669 - 2⁴ = 608653 is a prime.

It is a super-2 number, since 2×608669² = 740955903122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304334 + 304335.

It is an arithmetic number, because the mean of its divisors is an integer number (304335).

2⁶⁰⁸⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

608669 is a deficient number, since it is larger than the sum of its proper divisors (1).

608669 is an equidigital number, since it uses as much as digits as its factorization.

608669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 608669 is about 780.1724168413. The cubic root of 608669 is about 84.7475322910.

The spelling of 608669 in words is "six hundred eight thousand, six hundred sixty-nine".