720211 has 2 divisors, whose sum is σ = 720212. Its totient is φ = 720210.

The previous prime is 720197. The next prime is 720221. The reversal of 720211 is 112027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720211 - 2⁵ = 720179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 720191 and 720200.

It is not a weakly prime, because it can be changed into another prime (720221) 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 as a sum of consecutive naturals, namely, 360105 + 360106.

It is an arithmetic number, because the mean of its divisors is an integer number (360106).

2⁷²⁰²¹¹ is an apocalyptic number.

720211 is a deficient number, since it is larger than the sum of its proper divisors (1).

720211 is an equidigital number, since it uses as much as digits as its factorization.

720211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 720211 is about 848.6524612584. The cubic root of 720211 is about 89.6368494131.

Adding to 720211 its reverse (112027), we get a palindrome (832238).

The spelling of 720211 in words is "seven hundred twenty thousand, two hundred eleven", and thus it is an iban number.