6706407 has 4 divisors (see below), whose sum is σ = 8941880. Its totient is φ = 4470936.

The previous prime is 6706397. The next prime is 6706421. The reversal of 6706407 is 7046076.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6706407 - 2²⁰ = 5657831 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6706207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1117732 + ... + 1117737.

It is an arithmetic number, because the mean of its divisors is an integer number (2235470).

Almost surely, 2^6706407 is an apocalyptic number.

6706407 is a deficient number, since it is larger than the sum of its proper divisors (2235473).

6706407 is a wasteful number, since it uses less digits than its factorization.

6706407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235472.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 6706407 is about 2589.6731453989. The cubic root of 6706407 is about 188.5804359957.

The spelling of 6706407 in words is "six million, seven hundred six thousand, four hundred seven".