609669808 has 80 divisors (see below), whose sum is σ = 1341914112. Its totient is φ = 265824000.

The previous prime is 609669803. The next prime is 609669821. The reversal of 609669808 is 808966906.

It is not an unprimeable number, because it can be changed into a prime (609669803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714310 + ... + 715162.

Almost surely, 2^609669808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609669808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670957056).

609669808 is an abundant number, since it is smaller than the sum of its proper divisors (732244304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609669808 is a wasteful number, since it uses less digits than its factorization.

609669808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 609669808 is about 24691.4926239788. The cubic root of 609669808 is about 847.9395575171.

The spelling of 609669808 in words is "six hundred nine million, six hundred sixty-nine thousand, eight hundred eight".