6434247 has 4 divisors (see below), whose sum is σ = 8579000. Its totient is φ = 4289496.

The previous prime is 6434209. The next prime is 6434251. The reversal of 6434247 is 7424346.

6434247 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6434247 - 2⁸ = 6433991 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 (6434287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072372 + ... + 1072377.

It is an arithmetic number, because the mean of its divisors is an integer number (2144750).

Almost surely, 2^6434247 is an apocalyptic number.

6434247 is a deficient number, since it is larger than the sum of its proper divisors (2144753).

6434247 is a wasteful number, since it uses less digits than its factorization.

6434247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144752.

The product of its digits is 16128, while the sum is 30.

The square root of 6434247 is about 2536.5817550396. The cubic root of 6434247 is about 185.9941320845.

Subtracting 6434247 from its reverse (7424346), we obtain a palindrome (990099).

The spelling of 6434247 in words is "six million, four hundred thirty-four thousand, two hundred forty-seven".