6420601 has 8 divisors (see below), whose sum is σ = 7103808. Its totient is φ = 5754000.

The previous prime is 6420599. The next prime is 6420683. The reversal of 6420601 is 1060246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6420601 - 2¹ = 6420599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6420901) 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 7 ways as a sum of consecutive naturals, for example, 3330 + ... + 4891.

It is an arithmetic number, because the mean of its divisors is an integer number (887976).

Almost surely, 2^6420601 is an apocalyptic number.

It is an amenable number.

6420601 is a deficient number, since it is larger than the sum of its proper divisors (683207).

6420601 is a wasteful number, since it uses less digits than its factorization.

6420601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8303.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 6420601 is about 2533.8904869785. The cubic root of 6420601 is about 185.8625511693.

Adding to 6420601 its reverse (1060246), we get a palindrome (7480847).

It can be divided in two parts, 6420 and 601, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 6420601 in words is "six million, four hundred twenty thousand, six hundred one".