6421596 has 12 divisors (see below), whose sum is σ = 14983752. Its totient is φ = 2140528.

The previous prime is 6421589. The next prime is 6421637. The reversal of 6421596 is 6951246.

It is a tau number, because it is divible by the number of its divisors (12).

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 in 3 ways as a sum of consecutive naturals, for example, 267555 + ... + 267578.

It is an arithmetic number, because the mean of its divisors is an integer number (1248646).

Almost surely, 2^6421596 is an apocalyptic number.

It is an amenable number.

6421596 is an abundant number, since it is smaller than the sum of its proper divisors (8562156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6421596 is a wasteful number, since it uses less digits than its factorization.

6421596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535140 (or 535138 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 6421596 is about 2534.0868177709. The cubic root of 6421596 is about 185.8721517081.

The spelling of 6421596 in words is "six million, four hundred twenty-one thousand, five hundred ninety-six".