743873 has 4 divisors (see below), whose sum is σ = 801108. Its totient is φ = 686640.

The previous prime is 743851. The next prime is 743881. The reversal of 743873 is 378347.

743873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378347 = 19 ⋅19913.

It can be written as a sum of positive squares in 2 ways, for example, as 485809 + 258064 = 697^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 743873 - 2¹² = 739777 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 28598 + ... + 28623.

It is an arithmetic number, because the mean of its divisors is an integer number (200277).

2⁷⁴³⁸⁷³ is an apocalyptic number.

It is an amenable number.

743873 is a deficient number, since it is larger than the sum of its proper divisors (57235).

743873 is a wasteful number, since it uses less digits than its factorization.

743873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57234.

The product of its digits is 14112, while the sum is 32.

The square root of 743873 is about 862.4807244223. The cubic root of 743873 is about 90.6079417755.

The spelling of 743873 in words is "seven hundred forty-three thousand, eight hundred seventy-three".