6609429 has 6 divisors (see below), whose sum is σ = 9546966. Its totient is φ = 4406280.

The previous prime is 6609409. The next prime is 6609437. The reversal of 6609429 is 9249066.

6609429 is a `hidden beast` number, since 6 + 609 + 42 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6502500 + 106929 = 2550^2 + 327^2 .

It is not a de Polignac number, because 6609429 - 2⁷ = 6609301 is a prime.

6609429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6609393 and 6609402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609409) 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 5 ways as a sum of consecutive naturals, for example, 367182 + ... + 367199.

It is an arithmetic number, because the mean of its divisors is an integer number (1591161).

Almost surely, 2^6609429 is an apocalyptic number.

It is an amenable number.

6609429 is a deficient number, since it is larger than the sum of its proper divisors (2937537).

6609429 is a wasteful number, since it uses less digits than its factorization.

6609429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734387 (or 734384 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 6609429 is about 2570.8809774083. The cubic root of 6609429 is about 187.6670298280.

The spelling of 6609429 in words is "six million, six hundred nine thousand, four hundred twenty-nine".