4393009 has 12 divisors (see below), whose sum is σ = 4760976. Its totient is φ = 4050648.

The previous prime is 4393003. The next prime is 4393019. The reversal of 4393009 is 9003934.

It is not a de Polignac number, because 4393009 - 2³ = 4393001 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4393001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15382 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (396748).

Almost surely, 2^4393009 is an apocalyptic number.

It is an amenable number.

4393009 is a deficient number, since it is larger than the sum of its proper divisors (367967).

4393009 is a wasteful number, since it uses less digits than its factorization.

4393009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 4393009 is about 2095.9506196473. The cubic root of 4393009 is about 163.7774221309. Note that the first 3 decimals are identical.

The spelling of 4393009 in words is "four million, three hundred ninety-three thousand, nine".