743823 has 12 divisors (see below), whose sum is σ = 1114568. Its totient is φ = 495720.

The previous prime is 743819. The next prime is 743833. The reversal of 743823 is 328347.

743823 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 743823 - 2² = 743819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 7⁴ + 4³ + 8⁵ + 3¹¹ + 2 + 3¹² .

It is a Duffinian number.

743823 is strictly pandigital in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 743823.

It is not an unprimeable number, because it can be changed into a prime (743803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288 + ... + 1773.

2⁷⁴³⁸²³ is an apocalyptic number.

743823 is a deficient number, since it is larger than the sum of its proper divisors (370745).

743823 is an equidigital number, since it uses as much as digits as its factorization.

743823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076 (or 3064 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 743823 is about 862.4517377801. The cubic root of 743823 is about 90.6059116357.

The spelling of 743823 in words is "seven hundred forty-three thousand, eight hundred twenty-three".