6420193 has 16 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 5639040.

The previous prime is 6420173. The next prime is 6420199. The reversal of 6420193 is 3910246.

It is not a de Polignac number, because 6420193 - 2¹⁷ = 6289121 is a prime.

It is a Duffinian number.

6420193 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6420199) 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 15 ways as a sum of consecutive naturals, for example, 35778 + ... + 35956.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^6420193 is an apocalyptic number.

It is an amenable number.

6420193 is a deficient number, since it is larger than the sum of its proper divisors (837407).

6420193 is a wasteful number, since it uses less digits than its factorization.

6420193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 6420193 is about 2533.8099770898. The cubic root of 6420193 is about 185.8586141792.

The spelling of 6420193 in words is "six million, four hundred twenty thousand, one hundred ninety-three".