724723 has 2 divisors, whose sum is σ = 724724. Its totient is φ = 724722.

The previous prime is 724721. The next prime is 724729. The reversal of 724723 is 327427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 724723 - 2¹ = 724721 is a prime.

Together with 724721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (724721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362361 + 362362.

It is an arithmetic number, because the mean of its divisors is an integer number (362362).

2⁷²⁴⁷²³ is an apocalyptic number.

724723 is a deficient number, since it is larger than the sum of its proper divisors (1).

724723 is an equidigital number, since it uses as much as digits as its factorization.

724723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 25.

The square root of 724723 is about 851.3066427557. The cubic root of 724723 is about 89.8236464332.

The spelling of 724723 in words is "seven hundred twenty-four thousand, seven hundred twenty-three", and thus it is an iban number.