722523673 has 2 divisors, whose sum is σ = 722523674. Its totient is φ = 722523672.

The previous prime is 722523671. The next prime is 722523691. The reversal of 722523673 is 376325227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722373129 + 150544 = 26877^2 + 388^2 .

It is a cyclic number.

It is not a de Polignac number, because 722523673 - 2¹ = 722523671 is a prime.

Together with 722523671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (722523671) 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, 361261836 + 361261837.

It is an arithmetic number, because the mean of its divisors is an integer number (361261837).

Almost surely, 2^722523673 is an apocalyptic number.

It is an amenable number.

722523673 is a deficient number, since it is larger than the sum of its proper divisors (1).

722523673 is an equidigital number, since it uses as much as digits as its factorization.

722523673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 37.

The square root of 722523673 is about 26879.8004642892. The cubic root of 722523673 is about 897.3269133917.

The spelling of 722523673 in words is "seven hundred twenty-two million, five hundred twenty-three thousand, six hundred seventy-three".