722075441 has 2 divisors, whose sum is σ = 722075442. Its totient is φ = 722075440.

The previous prime is 722075413. The next prime is 722075443. The reversal of 722075441 is 144570227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 533425216 + 188650225 = 23096^2 + 13735^2 .

It is a cyclic number.

It is not a de Polignac number, because 722075441 - 2¹⁴ = 722059057 is a prime.

Together with 722075443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 722075398 and 722075407.

It is not a weakly prime, because it can be changed into another prime (722075443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361037720 + 361037721.

It is an arithmetic number, because the mean of its divisors is an integer number (361037721).

Almost surely, 2^722075441 is an apocalyptic number.

It is an amenable number.

722075441 is a deficient number, since it is larger than the sum of its proper divisors (1).

722075441 is an equidigital number, since it uses as much as digits as its factorization.

722075441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 722075441 is about 26871.4614600695. The cubic root of 722075441 is about 897.1413167790.

The spelling of 722075441 in words is "seven hundred twenty-two million, seventy-five thousand, four hundred forty-one".