6413647 has 4 divisors (see below), whose sum is σ = 6427000. Its totient is φ = 6400296.

The previous prime is 6413609. The next prime is 6413651. The reversal of 6413647 is 7463146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6413647 is a prime.

It is a super-2 number, since 2×6413647² = 82269735681218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6413677) 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, 5928 + ... + 6925.

It is an arithmetic number, because the mean of its divisors is an integer number (1606750).

Almost surely, 2^6413647 is an apocalyptic number.

6413647 is a deficient number, since it is larger than the sum of its proper divisors (13353).

6413647 is a wasteful number, since it uses less digits than its factorization.

6413647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13352.

The product of its digits is 12096, while the sum is 31.

The square root of 6413647 is about 2532.5179170146. The cubic root of 6413647 is about 185.7954258289.

The spelling of 6413647 in words is "six million, four hundred thirteen thousand, six hundred forty-seven".