6411605 has 8 divisors (see below), whose sum is σ = 7742112. Its totient is φ = 5097168.

The previous prime is 6411593. The next prime is 6411661. The reversal of 6411605 is 5061146.

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 6411605 - 2⁶ = 6411541 is a prime.

It is a super-2 number, since 2×6411605² = 82217357352050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 3119 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (967764).

Almost surely, 2^6411605 is an apocalyptic number.

It is an amenable number.

6411605 is a deficient number, since it is larger than the sum of its proper divisors (1330507).

6411605 is a wasteful number, since it uses less digits than its factorization.

6411605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8035.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 6411605 is about 2532.1147288383. The cubic root of 6411605 is about 185.7757056639.

The spelling of 6411605 in words is "six million, four hundred eleven thousand, six hundred five".