6407247 has 16 divisors (see below), whose sum is σ = 10651392. Its totient is φ = 3328320.

The previous prime is 6407239. The next prime is 6407251. The reversal of 6407247 is 7427046.

It is not a de Polignac number, because 6407247 - 2³ = 6407239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6407227) 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 15 ways as a sum of consecutive naturals, for example, 13638 + ... + 14099.

It is an arithmetic number, because the mean of its divisors is an integer number (665712).

Almost surely, 2^6407247 is an apocalyptic number.

6407247 is a deficient number, since it is larger than the sum of its proper divisors (4244145).

6407247 is a wasteful number, since it uses less digits than its factorization.

6407247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27758.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 6407247 is about 2531.2540370338. The cubic root of 6407247 is about 185.7336052316.

It can be divided in two parts, 640 and 7247, that added together give a palindrome (7887).

The spelling of 6407247 in words is "six million, four hundred seven thousand, two hundred forty-seven".