6409599 has 8 divisors (see below), whose sum is σ = 9767040. Its totient is φ = 3662616.

The previous prime is 6409589. The next prime is 6409603. The reversal of 6409599 is 9959046.

It is a happy number.

6409599 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6409599 - 2⁷ = 6409471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6409599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152589 + ... + 152630.

It is an arithmetic number, because the mean of its divisors is an integer number (1220880).

Almost surely, 2^6409599 is an apocalyptic number.

6409599 is a deficient number, since it is larger than the sum of its proper divisors (3357441).

6409599 is a wasteful number, since it uses less digits than its factorization.

6409599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305229.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 6409599 is about 2531.7185862572. The cubic root of 6409599 is about 185.7563290836.

The spelling of 6409599 in words is "six million, four hundred nine thousand, five hundred ninety-nine".