608986809 has 32 divisors (see below), whose sum is σ = 918190080. Its totient is φ = 398840400.

The previous prime is 608986793. The next prime is 608986813. The reversal of 608986809 is 908689806.

It is not a de Polignac number, because 608986809 - 2⁴ = 608986793 is a prime.

608986809 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (608986009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940924 + ... + 941570.

It is an arithmetic number, because the mean of its divisors is an integer number (28693440).

Almost surely, 2^608986809 is an apocalyptic number.

It is an amenable number.

608986809 is a deficient number, since it is larger than the sum of its proper divisors (309203271).

608986809 is a wasteful number, since it uses less digits than its factorization.

608986809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 608986809 is about 24677.6580939116. The cubic root of 608986809 is about 847.6227968359.

The spelling of 608986809 in words is "six hundred eight million, nine hundred eighty-six thousand, eight hundred nine".