722616197 has 2 divisors, whose sum is σ = 722616198. Its totient is φ = 722616196.

The previous prime is 722616121. The next prime is 722616241. The reversal of 722616197 is 791616227.

722616197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476941921 + 245674276 = 21839^2 + 15674^2 .

It is an emirp because it is prime and its reverse (791616227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722616197 - 2⁸ = 722615941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722616497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361308098 + 361308099.

It is an arithmetic number, because the mean of its divisors is an integer number (361308099).

Almost surely, 2^722616197 is an apocalyptic number.

It is an amenable number.

722616197 is a deficient number, since it is larger than the sum of its proper divisors (1).

722616197 is an equidigital number, since it uses as much as digits as its factorization.

722616197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 722616197 is about 26881.5214785175. The cubic root of 722616197 is about 897.3652146658.

The spelling of 722616197 in words is "seven hundred twenty-two million, six hundred sixteen thousand, one hundred ninety-seven".