623743 has 2 divisors, whose sum is σ = 623744. Its totient is φ = 623742.

The previous prime is 623729. The next prime is 623759. The reversal of 623743 is 347326.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623743 - 2¹⁷ = 492671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311871 + 311872.

It is an arithmetic number, because the mean of its divisors is an integer number (311872).

2⁶²³⁷⁴³ is an apocalyptic number.

623743 is a deficient number, since it is larger than the sum of its proper divisors (1).

623743 is an equidigital number, since it uses as much as digits as its factorization.

623743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 25.

The square root of 623743 is about 789.7740183116. The cubic root of 623743 is about 85.4414404709.

The spelling of 623743 in words is "six hundred twenty-three thousand, seven hundred forty-three".