6413851 has 4 divisors (see below), whose sum is σ = 6421104. Its totient is φ = 6406600.

The previous prime is 6413821. The next prime is 6413857. The reversal of 6413851 is 1583146.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1583146 = 2 ⋅791573.

It is a cyclic number.

It is not a de Polignac number, because 6413851 - 2⁹ = 6413339 is a prime.

It is a super-2 number, since 2×6413851² = 82274969300402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6413857) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2080 + ... + 4141.

It is an arithmetic number, because the mean of its divisors is an integer number (1605276).

Almost surely, 2^6413851 is an apocalyptic number.

6413851 is a deficient number, since it is larger than the sum of its proper divisors (7253).

6413851 is a wasteful number, since it uses less digits than its factorization.

6413851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252.

The product of its digits is 2880, while the sum is 28.

The square root of 6413851 is about 2532.5581928161. The cubic root of 6413851 is about 185.7973956840.

Adding to 6413851 its reverse (1583146), we get a palindrome (7996997).

It can be divided in two parts, 6 and 413851, that multiplied together give a triangular number (2483106 = T₂₂₂₈).

The spelling of 6413851 in words is "six million, four hundred thirteen thousand, eight hundred fifty-one".