6406711 has 8 divisors (see below), whose sum is σ = 6580224. Its totient is φ = 6234840.

The previous prime is 6406691. The next prime is 6406717. The reversal of 6406711 is 1176046.

It is a happy number.

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 6406711 - 2⁵ = 6406679 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 (6406717) 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, 12486 + ... + 12988.

It is an arithmetic number, because the mean of its divisors is an integer number (822528).

Almost surely, 2^6406711 is an apocalyptic number.

6406711 is a deficient number, since it is larger than the sum of its proper divisors (173513).

6406711 is a wasteful number, since it uses less digits than its factorization.

6406711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 6406711 is about 2531.1481584451. The cubic root of 6406711 is about 185.7284258887.

It can be divided in two parts, 6406 and 711, that added together give a palindrome (7117).

The spelling of 6406711 in words is "six million, four hundred six thousand, seven hundred eleven".