609660535 has 16 divisors (see below), whose sum is σ = 811189152. Its totient is φ = 436118400.

The previous prime is 609660521. The next prime is 609660553. The reversal of 609660535 is 535066906.

It is not a de Polignac number, because 609660535 - 2¹¹ = 609658487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87504 + ... + 94213.

It is an arithmetic number, because the mean of its divisors is an integer number (50699322).

Almost surely, 2^609660535 is an apocalyptic number.

609660535 is a deficient number, since it is larger than the sum of its proper divisors (201528617).

609660535 is a wasteful number, since it uses less digits than its factorization.

609660535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181794.

The product of its (nonzero) digits is 145800, while the sum is 40.

The square root of 609660535 is about 24691.3048460384. The cubic root of 609660535 is about 847.9352584778.

The spelling of 609660535 in words is "six hundred nine million, six hundred sixty thousand, five hundred thirty-five".