6411247 has 4 divisors (see below), whose sum is σ = 6422256. Its totient is φ = 6400240.

The previous prime is 6411241. The next prime is 6411259. The reversal of 6411247 is 7421146.

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 6411247 - 2³ = 6411239 is a prime.

It is a super-2 number, since 2×6411247² = 82208176190018, 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 (6411241) 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, 4579 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (1605564).

Almost surely, 2^6411247 is an apocalyptic number.

6411247 is a deficient number, since it is larger than the sum of its proper divisors (11009).

6411247 is a wasteful number, since it uses less digits than its factorization.

6411247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008.

The product of its digits is 1344, while the sum is 25.

The square root of 6411247 is about 2532.0440359520. The cubic root of 6411247 is about 185.7722479265.

It can be divided in two parts, 64 and 11247, that added together give a palindrome (11311).

The spelling of 6411247 in words is "six million, four hundred eleven thousand, two hundred forty-seven".