609406 has 32 divisors (see below), whose sum is σ = 1152000. Its totient is φ = 235872.

The previous prime is 609403. The next prime is 609407. The reversal of 609406 is 604906.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7675 + ... + 7753.

It is an arithmetic number, because the mean of its divisors is an integer number (36000).

2⁶⁰⁹⁴⁰⁶ is an apocalyptic number.

609406 is a deficient number, since it is larger than the sum of its proper divisors (542594).

609406 is a wasteful number, since it uses less digits than its factorization.

609406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 609406 is about 780.6446054384. The cubic root of 609406 is about 84.7817236928.

The spelling of 609406 in words is "six hundred nine thousand, four hundred six".