609755 has 4 divisors (see below), whose sum is σ = 731712. Its totient is φ = 487800.

The previous prime is 609751. The next prime is 609757. The reversal of 609755 is 557906.

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

It is not a de Polignac number, because 609755 - 2² = 609751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60971 + ... + 60980.

It is an arithmetic number, because the mean of its divisors is an integer number (182928).

2⁶⁰⁹⁷⁵⁵ is an apocalyptic number.

609755 is a deficient number, since it is larger than the sum of its proper divisors (121957).

609755 is a wasteful number, since it uses less digits than its factorization.

609755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121956.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 609755 is about 780.8681066608. The cubic root of 609755 is about 84.7979051191.

The spelling of 609755 in words is "six hundred nine thousand, seven hundred fifty-five".