608101809 has 12 divisors (see below), whose sum is σ = 943178544. Its totient is φ = 347486664.

The previous prime is 608101799. The next prime is 608101811. The reversal of 608101809 is 908101806.

It is not a de Polignac number, because 608101809 - 2⁵ = 608101777 is a prime.

608101809 is a strobogrammatic number because it is the same when read upside-down.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 608101809.

It is not an unprimeable number, because it can be changed into a prime (608101889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2068227 + ... + 2068520.

It is an arithmetic number, because the mean of its divisors is an integer number (78598212).

Almost surely, 2^608101809 is an apocalyptic number.

It is an amenable number.

608101809 is a deficient number, since it is larger than the sum of its proper divisors (335076735).

608101809 is a wasteful number, since it uses less digits than its factorization.

608101809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136764 (or 4136757 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 608101809 is about 24659.7203755436. The cubic root of 608101809 is about 847.2119998439.

The spelling of 608101809 in words is "six hundred eight million, one hundred one thousand, eight hundred nine".