6411838 has 4 divisors (see below), whose sum is σ = 9617760. Its totient is φ = 3205918.

The previous prime is 6411829. The next prime is 6411851. The reversal of 6411838 is 8381146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8381146 = 2 ⋅4190573.

It is a super-2 number, since 2×6411838² = 82223333076488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602958 + ... + 1602961.

It is an arithmetic number, because the mean of its divisors is an integer number (2404440).

Almost surely, 2^6411838 is an apocalyptic number.

6411838 is a deficient number, since it is larger than the sum of its proper divisors (3205922).

6411838 is a wasteful number, since it uses less digits than its factorization.

6411838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205921.

The product of its digits is 4608, while the sum is 31.

The square root of 6411838 is about 2532.1607373941. The cubic root of 6411838 is about 185.7779560217. Note that the first 3 decimals are identical.

The spelling of 6411838 in words is "six million, four hundred eleven thousand, eight hundred thirty-eight".