243875773 has 4 divisors (see below), whose sum is σ = 256711360. Its totient is φ = 231040188.

The previous prime is 243875719. The next prime is 243875783. The reversal of 243875773 is 377578342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243875773 - 2¹³ = 243867581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243875713) 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, 6417765 + ... + 6417802.

It is an arithmetic number, because the mean of its divisors is an integer number (64177840).

Almost surely, 2^243875773 is an apocalyptic number.

It is an amenable number.

243875773 is a deficient number, since it is larger than the sum of its proper divisors (12835587).

243875773 is a wasteful number, since it uses less digits than its factorization.

243875773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835586.

The product of its digits is 987840, while the sum is 46.

The square root of 243875773 is about 15616.5224361892. The cubic root of 243875773 is about 624.7739111840.

The spelling of 243875773 in words is "two hundred forty-three million, eight hundred seventy-five thousand, seven hundred seventy-three".