609395085 has 24 divisors (see below), whose sum is σ = 1137538584. Its totient is φ = 300009600.

The previous prime is 609395077. The next prime is 609395089. The reversal of 609395085 is 580593906.

609395085 is a `hidden beast` number, since 609 + 39 + 5 + 0 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27910089 + 581484996 = 5283^2 + 24114^2 .

It is not a de Polignac number, because 609395085 - 2³ = 609395077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 609395085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609395089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520266 + ... + 521435.

It is an arithmetic number, because the mean of its divisors is an integer number (47397441).

Almost surely, 2^609395085 is an apocalyptic number.

609395085 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

609395085 is a deficient number, since it is larger than the sum of its proper divisors (528143499).

609395085 is a wasteful number, since it uses less digits than its factorization.

609395085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041725 (or 1041722 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 609395085 is about 24685.9288867160. The cubic root of 609395085 is about 847.8121751786.

The spelling of 609395085 in words is "six hundred nine million, three hundred ninety-five thousand, eighty-five".