6421170 has 32 divisors (see below), whose sum is σ = 17612928. Its totient is φ = 1467648.

The previous prime is 6421159. The next prime is 6421201. The reversal of 6421170 is 711246.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 15079 + ... + 15498.

It is an arithmetic number, because the mean of its divisors is an integer number (550404).

Almost surely, 2^6421170 is an apocalyptic number.

6421170 is an abundant number, since it is smaller than the sum of its proper divisors (11191758).

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

6421170 is a wasteful number, since it uses less digits than its factorization.

6421170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30594.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 6421170 is about 2534.0027624294. The cubic root of 6421170 is about 185.8680414481.

The spelling of 6421170 in words is "six million, four hundred twenty-one thousand, one hundred seventy".