6947409 has 16 divisors (see below), whose sum is σ = 10846080. Its totient is φ = 3872640.

The previous prime is 6947401. The next prime is 6947411. The reversal of 6947409 is 9047496.

It is not a de Polignac number, because 6947409 - 2³ = 6947401 is a prime.

6947409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6947401) 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, 3174 + ... + 4895.

It is an arithmetic number, because the mean of its divisors is an integer number (677880).

Almost surely, 2^6947409 is an apocalyptic number.

It is an amenable number.

6947409 is a deficient number, since it is larger than the sum of its proper divisors (3898671).

6947409 is a wasteful number, since it uses less digits than its factorization.

6947409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 6947409 is about 2635.7938083242. The cubic root of 6947409 is about 190.8128517817.

The spelling of 6947409 in words is "six million, nine hundred forty-seven thousand, four hundred nine".