4206609 has 12 divisors (see below), whose sum is σ = 6628752. Its totient is φ = 2549400.

The previous prime is 4206593. The next prime is 4206611. The reversal of 4206609 is 9066024.

It is not a de Polignac number, because 4206609 - 2⁴ = 4206593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4206659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21147 + ... + 21344.

It is an arithmetic number, because the mean of its divisors is an integer number (552396).

Almost surely, 2^4206609 is an apocalyptic number.

It is an amenable number.

4206609 is a deficient number, since it is larger than the sum of its proper divisors (2422143).

4206609 is a wasteful number, since it uses less digits than its factorization.

4206609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42508 (or 42505 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4206609 is about 2051.0019502672. The cubic root of 4206609 is about 161.4274484257.

The spelling of 4206609 in words is "four million, two hundred six thousand, six hundred nine".