720564211 has 4 divisors (see below), whose sum is σ = 720621000. Its totient is φ = 720507424.

The previous prime is 720564181. The next prime is 720564277. The reversal of 720564211 is 112465027.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 720564211 - 2⁵ = 720564179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720564211.

It is not an unprimeable number, because it can be changed into a prime (720564811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315 + ... + 37963.

It is an arithmetic number, because the mean of its divisors is an integer number (180155250).

Almost surely, 2^720564211 is an apocalyptic number.

720564211 is a deficient number, since it is larger than the sum of its proper divisors (56789).

720564211 is a wasteful number, since it uses less digits than its factorization.

720564211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56788.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 720564211 is about 26843.3271223967. The cubic root of 720564211 is about 896.5150046527.

It can be divided in two parts, 72056 and 4211, that added together give a palindrome (76267).

The spelling of 720564211 in words is "seven hundred twenty million, five hundred sixty-four thousand, two hundred eleven".