6411909 has 8 divisors (see below), whose sum is σ = 9770560. Its totient is φ = 3663936.

The previous prime is 6411901. The next prime is 6411953. The reversal of 6411909 is 9091146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6411909 - 2³ = 6411901 is a prime.

It is a super-2 number, since 2×6411909² = 82225154048562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6411901) 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 7 ways as a sum of consecutive naturals, for example, 152644 + ... + 152685.

It is an arithmetic number, because the mean of its divisors is an integer number (1221320).

Almost surely, 2^6411909 is an apocalyptic number.

It is an amenable number.

6411909 is a deficient number, since it is larger than the sum of its proper divisors (3358651).

6411909 is a wasteful number, since it uses less digits than its factorization.

6411909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305339.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 6411909 is about 2532.1747570024. The cubic root of 6411909 is about 185.7786417422.

The spelling of 6411909 in words is "six million, four hundred eleven thousand, nine hundred nine".