609975 has 18 divisors (see below), whose sum is σ = 1092936. Its totient is φ = 325200.

The previous prime is 609929. The next prime is 609979. The reversal of 609975 is 579906.

It is not a de Polignac number, because 609975 - 2⁶ = 609911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609979) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1131 + ... + 1580.

2⁶⁰⁹⁹⁷⁵ is an apocalyptic number.

609975 is a deficient number, since it is larger than the sum of its proper divisors (482961).

609975 is a wasteful number, since it uses less digits than its factorization.

609975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 609975 is about 781.0089628167. The cubic root of 609975 is about 84.8081022726.

The spelling of 609975 in words is "six hundred nine thousand, nine hundred seventy-five".