720563413 has 2 divisors, whose sum is σ = 720563414. Its totient is φ = 720563412.

The previous prime is 720563369. The next prime is 720563449. The reversal of 720563413 is 314365027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567249489 + 153313924 = 23817^2 + 12382^2 .

It is an emirp because it is prime and its reverse (314365027) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720563413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720563453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360281706 + 360281707.

It is an arithmetic number, because the mean of its divisors is an integer number (360281707).

Almost surely, 2^720563413 is an apocalyptic number.

It is an amenable number.

720563413 is a deficient number, since it is larger than the sum of its proper divisors (1).

720563413 is an equidigital number, since it uses as much as digits as its factorization.

720563413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 720563413 is about 26843.3122583633. The cubic root of 720563413 is about 896.5146736994.

The spelling of 720563413 in words is "seven hundred twenty million, five hundred sixty-three thousand, four hundred thirteen".