609447 has 8 divisors (see below), whose sum is σ = 828144. Its totient is φ = 398528.

The previous prime is 609443. The next prime is 609461. The reversal of 609447 is 744906.

609447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 609447 - 2² = 609443 is a prime.

It is an Ulam number.

609447 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609447.

It is not an unprimeable number, because it can be changed into a prime (609443) 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, 1758 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (103518).

2⁶⁰⁹⁴⁴⁷ is an apocalyptic number.

609447 is a deficient number, since it is larger than the sum of its proper divisors (218697).

609447 is a wasteful number, since it uses less digits than its factorization.

609447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 609447 is about 780.6708653460. The cubic root of 609447 is about 84.7836249828.

Adding to 609447 its product of nonzero digits (6048), we get a triangular number (615495 = T₁₁₀₉).

The spelling of 609447 in words is "six hundred nine thousand, four hundred forty-seven".