6407407 has 4 divisors (see below), whose sum is σ = 6440800. Its totient is φ = 6374016.

The previous prime is 6407393. The next prime is 6407417. The reversal of 6407407 is 7047046.

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

It is a cyclic number.

It is not a de Polignac number, because 6407407 - 2⁷ = 6407279 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 (6407417) 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, 16407 + ... + 16792.

It is an arithmetic number, because the mean of its divisors is an integer number (1610200).

Almost surely, 2^6407407 is an apocalyptic number.

6407407 is a deficient number, since it is larger than the sum of its proper divisors (33393).

6407407 is a wasteful number, since it uses less digits than its factorization.

6407407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33392.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 6407407 is about 2531.2856417244. The cubic root of 6407407 is about 185.7351512482.

It can be divided in two parts, 6 and 407407, that multiplied together give a palindrome (2444442).

The spelling of 6407407 in words is "six million, four hundred seven thousand, four hundred seven".