6720201 has 12 divisors (see below), whose sum is σ = 9914112. Its totient is φ = 4384536.

The previous prime is 6720191. The next prime is 6720227. The reversal of 6720201 is 1020276.

It is a happy number.

It is not a de Polignac number, because 6720201 - 2¹⁰ = 6719177 is a prime.

It is a super-2 number, since 2×6720201² = 90322202960802, which contains 22 as substring.

6720201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6720251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7521 + ... + 8366.

It is an arithmetic number, because the mean of its divisors is an integer number (826176).

Almost surely, 2^6720201 is an apocalyptic number.

It is an amenable number.

6720201 is a deficient number, since it is larger than the sum of its proper divisors (3193911).

6720201 is a wasteful number, since it uses less digits than its factorization.

6720201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15940 (or 15937 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 6720201 is about 2592.3350477899. The cubic root of 6720201 is about 188.7096406552.

Adding to 6720201 its reverse (1020276), we get a palindrome (7740477).

The spelling of 6720201 in words is "six million, seven hundred twenty thousand, two hundred one".