609803712 has 84 divisors (see below), whose sum is σ = 1997604336. Its totient is φ = 174228480.

The previous prime is 609803687. The next prime is 609803713. The reversal of 609803712 is 217308906.

609803712 is a `hidden beast` number, since 609 + 8 + 0 + 37 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609803713) 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 11 ways as a sum of consecutive naturals, for example, 71589 + ... + 79652.

It is an arithmetic number, because the mean of its divisors is an integer number (23781004).

Almost surely, 2^609803712 is an apocalyptic number.

It is an amenable number.

609803712 is an abundant number, since it is smaller than the sum of its proper divisors (1387800624).

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

609803712 is a wasteful number, since it uses less digits than its factorization.

609803712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151266 (or 151253 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 609803712 is about 24694.2040163274. The cubic root of 609803712 is about 848.0016316570.

The spelling of 609803712 in words is "six hundred nine million, eight hundred three thousand, seven hundred twelve".