723043 has 2 divisors, whose sum is σ = 723044. Its totient is φ = 723042.

The previous prime is 723031. The next prime is 723049. The reversal of 723043 is 340327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 723043 - 2¹³ = 714851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 723043.

It is not a weakly prime, because it can be changed into another prime (723049) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361521 + 361522.

It is an arithmetic number, because the mean of its divisors is an integer number (361522).

2⁷²³⁰⁴³ is an apocalyptic number.

723043 is a deficient number, since it is larger than the sum of its proper divisors (1).

723043 is an equidigital number, since it uses as much as digits as its factorization.

723043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 723043 is about 850.3193517732. The cubic root of 723043 is about 89.7541851903.

The spelling of 723043 in words is "seven hundred twenty-three thousand, forty-three", and thus it is an iban number.