6409886 has 12 divisors (see below), whose sum is σ = 11184768. Its totient is φ = 2747052.

The previous prime is 6409883. The next prime is 6409889. The reversal of 6409886 is 6889046.

It is an interprime number because it is at equal distance from previous prime (6409883) and next prime (6409889).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409883) 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 5 ways as a sum of consecutive naturals, for example, 32606 + ... + 32801.

It is an arithmetic number, because the mean of its divisors is an integer number (932064).

Almost surely, 2^6409886 is an apocalyptic number.

6409886 is a deficient number, since it is larger than the sum of its proper divisors (4774882).

6409886 is a wasteful number, since it uses less digits than its factorization.

6409886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65423 (or 65416 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 6409886 is about 2531.7752664879. The cubic root of 6409886 is about 185.7591015540.

The spelling of 6409886 in words is "six million, four hundred nine thousand, eight hundred eighty-six".