722276473 has 2 divisors, whose sum is σ = 722276474. Its totient is φ = 722276472.

The previous prime is 722276447. The next prime is 722276497. The reversal of 722276473 is 374672227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454201344 + 268075129 = 21312^2 + 16373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722276473 is a prime.

It is equal to p_37345774 and since 722276473 and 37345774 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (722273473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361138236 + 361138237.

It is an arithmetic number, because the mean of its divisors is an integer number (361138237).

Almost surely, 2^722276473 is an apocalyptic number.

It is an amenable number.

722276473 is a deficient number, since it is larger than the sum of its proper divisors (1).

722276473 is an equidigital number, since it uses as much as digits as its factorization.

722276473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 40.

The square root of 722276473 is about 26875.2018224980. The cubic root of 722276473 is about 897.2245663345.

The spelling of 722276473 in words is "seven hundred twenty-two million, two hundred seventy-six thousand, four hundred seventy-three".