609874589 has 8 divisors (see below), whose sum is σ = 627982680. Its totient is φ = 591852096.

The previous prime is 609874571. The next prime is 609874591. The reversal of 609874589 is 985478906.

It can be written as a sum of positive squares in 4 ways, for example, as 26265625 + 583608964 = 5125^2 + 24158^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609874589 - 2²⁰ = 608826013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609864589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6794 + ... + 35579.

It is an arithmetic number, because the mean of its divisors is an integer number (78497835).

Almost surely, 2^609874589 is an apocalyptic number.

It is an amenable number.

609874589 is a deficient number, since it is larger than the sum of its proper divisors (18108091).

609874589 is a wasteful number, since it uses less digits than its factorization.

609874589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42799.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 609874589 is about 24695.6390684671. The cubic root of 609874589 is about 848.0344845691.

The spelling of 609874589 in words is "six hundred nine million, eight hundred seventy-four thousand, five hundred eighty-nine".