605609069 has 8 divisors (see below), whose sum is σ = 653287992. Its totient is φ = 558086400.

The previous prime is 605609057. The next prime is 605609077. The reversal of 605609069 is 960906506.

It can be written as a sum of positive squares in 4 ways, for example, as 237468100 + 368140969 = 15410^2 + 19187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 605609069 - 2⁸ = 605608813 is a prime.

It is a super-2 number, since 2×605609069² = 733524688910093522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605609269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30944 + ... + 46569.

It is an arithmetic number, because the mean of its divisors is an integer number (81660999).

Almost surely, 2^605609069 is an apocalyptic number.

It is an amenable number.

605609069 is a deficient number, since it is larger than the sum of its proper divisors (47678923).

605609069 is a wasteful number, since it uses less digits than its factorization.

605609069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78127.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 605609069 is about 24609.1257260391. The cubic root of 605609069 is about 846.0527797477.

The spelling of 605609069 in words is "six hundred five million, six hundred nine thousand, sixty-nine".