6404365 has 8 divisors (see below), whose sum is σ = 8383968. Its totient is φ = 4657680.

The previous prime is 6404357. The next prime is 6404369. The reversal of 6404365 is 5634046.

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

It is not a de Polignac number, because 6404365 - 2³ = 6404357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404369) 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, 58167 + ... + 58276.

It is an arithmetic number, because the mean of its divisors is an integer number (1047996).

Almost surely, 2^6404365 is an apocalyptic number.

It is an amenable number.

6404365 is a deficient number, since it is larger than the sum of its proper divisors (1979603).

6404365 is a wasteful number, since it uses less digits than its factorization.

6404365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116459.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 6404365 is about 2530.6846899604. The cubic root of 6404365 is about 185.7057532005.

It can be divided in two parts, 640 and 4365, that added together give a palindrome (5005).

The spelling of 6404365 in words is "six million, four hundred four thousand, three hundred sixty-five".