3420009 has 16 divisors (see below), whose sum is σ = 5365440. Its totient is φ = 2145600.

The previous prime is 3419963. The next prime is 3420023. The reversal of 3420009 is 9000243.

It is not a de Polignac number, because 3420009 - 2²¹ = 1322857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3419973 and 3420000.

It is not an unprimeable number, because it can be changed into a prime (3420059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267 + ... + 4184.

It is an arithmetic number, because the mean of its divisors is an integer number (335340).

Almost surely, 2^3420009 is an apocalyptic number.

It is an amenable number.

3420009 is a deficient number, since it is larger than the sum of its proper divisors (1945431).

3420009 is a wasteful number, since it uses less digits than its factorization.

3420009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477 (or 7471 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3420009 is about 1849.3266342104. The cubic root of 3420009 is about 150.6638576194.

The spelling of 3420009 in words is "three million, four hundred twenty thousand, nine".