609908 has 24 divisors (see below), whose sum is σ = 1184232. Its totient is φ = 273024.

The previous prime is 609907. The next prime is 609911. The reversal of 609908 is 809906.

It is a happy number.

609908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13924 + 595984 = 118^2 + 772^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609908.

It is not an unprimeable number, because it can be changed into a prime (609907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 2082.

It is an arithmetic number, because the mean of its divisors is an integer number (49343).

2⁶⁰⁹⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

609908 is a deficient number, since it is larger than the sum of its proper divisors (574324).

609908 is a wasteful number, since it uses less digits than its factorization.

609908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 609908 is about 780.9660684050. The cubic root of 609908 is about 84.8049970355.

The spelling of 609908 in words is "six hundred nine thousand, nine hundred eight".