605072605 has 4 divisors (see below), whose sum is σ = 726087132. Its totient is φ = 484058080.

The previous prime is 605072597. The next prime is 605072609. The reversal of 605072605 is 506270506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164198596 + 440874009 = 12814^2 + 20997^2 .

It is not a de Polignac number, because 605072605 - 2³ = 605072597 is a prime.

It is a super-2 number, since 2×605072605² = 732225714642972050, 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 (605072609) 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 3 ways as a sum of consecutive naturals, for example, 60507256 + ... + 60507265.

It is an arithmetic number, because the mean of its divisors is an integer number (181521783).

Almost surely, 2^605072605 is an apocalyptic number.

It is an amenable number.

605072605 is a deficient number, since it is larger than the sum of its proper divisors (121014527).

605072605 is a wasteful number, since it uses less digits than its factorization.

605072605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121014526.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 605072605 is about 24598.2236147247. The cubic root of 605072605 is about 845.8028875503.

The spelling of 605072605 in words is "six hundred five million, seventy-two thousand, six hundred five".