743923 has 2 divisors, whose sum is σ = 743924. Its totient is φ = 743922.

The previous prime is 743921. The next prime is 743933. The reversal of 743923 is 329347.

It is a weak prime.

It is an emirp because it is prime and its reverse (329347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 743923 - 2¹ = 743921 is a prime.

Together with 743921, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 743891 and 743900.

It is not a weakly prime, because it can be changed into another prime (743921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371961 + 371962.

It is an arithmetic number, because the mean of its divisors is an integer number (371962).

2⁷⁴³⁹²³ is an apocalyptic number.

743923 is a deficient number, since it is larger than the sum of its proper divisors (1).

743923 is an equidigital number, since it uses as much as digits as its factorization.

743923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 743923 is about 862.5097100903. The cubic root of 743923 is about 90.6099718243.

The spelling of 743923 in words is "seven hundred forty-three thousand, nine hundred twenty-three".