6409345 has 8 divisors (see below), whose sum is σ = 7726464. Its totient is φ = 5103984.

The previous prime is 6409339. The next prime is 6409363. The reversal of 6409345 is 5439046.

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

It is a cyclic number.

It is not a de Polignac number, because 6409345 - 2⁷ = 6409217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689 + ... + 3958.

It is an arithmetic number, because the mean of its divisors is an integer number (965808).

Almost surely, 2^6409345 is an apocalyptic number.

It is an amenable number.

6409345 is a deficient number, since it is larger than the sum of its proper divisors (1317119).

6409345 is a wasteful number, since it uses less digits than its factorization.

6409345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5879.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 6409345 is about 2531.6684222070. The cubic root of 6409345 is about 185.7538753300.

Subtracting from 6409345 its reverse (5439046), we obtain a cube (970299 = 99³).

The spelling of 6409345 in words is "six million, four hundred nine thousand, three hundred forty-five".