723271 has 2 divisors, whose sum is σ = 723272. Its totient is φ = 723270.

The previous prime is 723269. The next prime is 723287. The reversal of 723271 is 172327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 723271 - 2¹ = 723269 is a prime.

Together with 723269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361635 + 361636.

It is an arithmetic number, because the mean of its divisors is an integer number (361636).

2⁷²³²⁷¹ is an apocalyptic number.

723271 is a deficient number, since it is larger than the sum of its proper divisors (1).

723271 is an equidigital number, since it uses as much as digits as its factorization.

723271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 588, while the sum is 22.

The square root of 723271 is about 850.4534084828. The cubic root of 723271 is about 89.7636183792.

Adding to 723271 its reverse (172327), we get a palindrome (895598).

The spelling of 723271 in words is "seven hundred twenty-three thousand, two hundred seventy-one", and thus it is an iban number.