6411391 has 8 divisors (see below), whose sum is σ = 7345184. Its totient is φ = 5482080.

The previous prime is 6411373. The next prime is 6411421. The reversal of 6411391 is 1931146.

6411391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6411391 - 2⁵ = 6411359 is a prime.

It is a super-2 number, since 2×6411391² = 82211869109762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6411331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2941 + ... + 4633.

It is an arithmetic number, because the mean of its divisors is an integer number (918148).

Almost surely, 2^6411391 is an apocalyptic number.

6411391 is a deficient number, since it is larger than the sum of its proper divisors (933793).

6411391 is a wasteful number, since it uses less digits than its factorization.

6411391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241.

The product of its digits is 648, while the sum is 25.

The square root of 6411391 is about 2532.0724713167. The cubic root of 6411391 is about 185.7736387637.

The spelling of 6411391 in words is "six million, four hundred eleven thousand, three hundred ninety-one".