609297605 has 54 divisors (see below), whose sum is σ = 908595846. Its totient is φ = 391045536.

The previous prime is 609297587. The next prime is 609297617. The reversal of 609297605 is 506792906.

It can be written as a sum of positive squares in only one way, i.e., 487438084 + 121859521 = 22078^2 + 11039^2 .

It is not a de Polignac number, because 609297605 - 2⁸ = 609297349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 7340894 + ... + 7340976.

It is an arithmetic number, because the mean of its divisors is an integer number (16825849).

Almost surely, 2^609297605 is an apocalyptic number.

It is an amenable number.

609297605 is a deficient number, since it is larger than the sum of its proper divisors (299298241).

609297605 is an equidigital number, since it uses as much as digits as its factorization.

609297605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 609297605 is about 24683.9544036202. The cubic root of 609297605 is about 847.7669668839.

The spelling of 609297605 in words is "six hundred nine million, two hundred ninety-seven thousand, six hundred five".