602116721 has 2 divisors, whose sum is σ = 602116722. Its totient is φ = 602116720.

The previous prime is 602116703. The next prime is 602116759. The reversal of 602116721 is 127611206.

602116721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322023025 + 280093696 = 17945^2 + 16736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-602116721 is a prime.

It is not a weakly prime, because it can be changed into another prime (602116121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301058360 + 301058361.

It is an arithmetic number, because the mean of its divisors is an integer number (301058361).

Almost surely, 2^602116721 is an apocalyptic number.

It is an amenable number.

602116721 is a deficient number, since it is larger than the sum of its proper divisors (1).

602116721 is an equidigital number, since it uses as much as digits as its factorization.

602116721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 602116721 is about 24538.0667738924. The cubic root of 602116721 is about 844.4233410194.

Adding to 602116721 its reverse (127611206), we get a palindrome (729727927).

The spelling of 602116721 in words is "six hundred two million, one hundred sixteen thousand, seven hundred twenty-one".