723269 has 2 divisors, whose sum is σ = 723270. Its totient is φ = 723268.

The previous prime is 723263. The next prime is 723271. The reversal of 723269 is 962327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 21025 = 838^2 + 145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723269 is a prime.

It is a super-2 number, since 2×723269² = 1046236092722, which contains 22 as substring.

Together with 723271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361634 + 361635.

It is an arithmetic number, because the mean of its divisors is an integer number (361635).

2⁷²³²⁶⁹ is an apocalyptic number.

It is an amenable number.

723269 is a deficient number, since it is larger than the sum of its proper divisors (1).

723269 is an equidigital number, since it uses as much as digits as its factorization.

723269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 723269 is about 850.4522326386. The cubic root of 723269 is about 89.7635356406.

The spelling of 723269 in words is "seven hundred twenty-three thousand, two hundred sixty-nine".