6413947 has 4 divisors (see below), whose sum is σ = 6791256. Its totient is φ = 6036640.

The previous prime is 6413903. The next prime is 6413951. The reversal of 6413947 is 7493146.

It is a happy number.

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-6413947 is a prime.

It is a super-2 number, since 2×6413947² = 82277432237618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6413047) 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, 188629 + ... + 188662.

It is an arithmetic number, because the mean of its divisors is an integer number (1697814).

Almost surely, 2^6413947 is an apocalyptic number.

6413947 is a deficient number, since it is larger than the sum of its proper divisors (377309).

6413947 is a wasteful number, since it uses less digits than its factorization.

6413947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377308.

The product of its digits is 18144, while the sum is 34.

The square root of 6413947 is about 2532.5771459128. The cubic root of 6413947 is about 185.7983226601.

The spelling of 6413947 in words is "six million, four hundred thirteen thousand, nine hundred forty-seven".