6416605 has 8 divisors (see below), whose sum is σ = 8292312. Its totient is φ = 4738368.

The previous prime is 6416593. The next prime is 6416611. The reversal of 6416605 is 5066146.

6416605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1390041 + 5026564 = 1179^2 + 2242^2 .

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 6416605 - 2⁵ = 6416573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49294 + ... + 49423.

It is an arithmetic number, because the mean of its divisors is an integer number (1036539).

Almost surely, 2^6416605 is an apocalyptic number.

6416605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6416605 is a deficient number, since it is larger than the sum of its proper divisors (1875707).

6416605 is a wasteful number, since it uses less digits than its factorization.

6416605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98735.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6416605 is about 2533.1018534595. The cubic root of 6416605 is about 185.8239846401.

It can be divided in two parts, 6416 and 605, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 6416605 in words is "six million, four hundred sixteen thousand, six hundred five".