722723 has 2 divisors, whose sum is σ = 722724. Its totient is φ = 722722.

The previous prime is 722713. The next prime is 722737. The reversal of 722723 is 327227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722723 - 2⁸ = 722467 is a prime.

It is a d-powerful number, because it can be written as 7⁴ + 2⁵ + 7⁵ + 2¹¹ + 2¹⁹ + 3¹¹ .

It is not a weakly prime, because it can be changed into another prime (722713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361361 + 361362.

It is an arithmetic number, because the mean of its divisors is an integer number (361362).

2⁷²²⁷²³ is an apocalyptic number.

722723 is a deficient number, since it is larger than the sum of its proper divisors (1).

722723 is an equidigital number, since it uses as much as digits as its factorization.

722723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176, while the sum is 23.

The square root of 722723 is about 850.1311663502. The cubic root of 722723 is about 89.7409422816.

The spelling of 722723 in words is "seven hundred twenty-two thousand, seven hundred twenty-three", and thus it is an iban number.