243379 has 4 divisors (see below), whose sum is σ = 244584. Its totient is φ = 242176.

The previous prime is 243367. The next prime is 243391. The reversal of 243379 is 973342.

243379 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 973342 = 2 ⋅486671.

It is an interprime number because it is at equal distance from previous prime (243367) and next prime (243391).

It is a cyclic number.

It is not a de Polignac number, because 243379 - 2⁹ = 242867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243479) 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, 217 + ... + 730.

It is an arithmetic number, because the mean of its divisors is an integer number (61146).

2²⁴³³⁷⁹ is an apocalyptic number.

243379 is a deficient number, since it is larger than the sum of its proper divisors (1205).

243379 is an equidigital number, since it uses as much as digits as its factorization.

243379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

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

The square root of 243379 is about 493.3345720705. The cubic root of 243379 is about 62.4349402993.

It can be divided in two parts, 24 and 3379, that added together give a triangular number (3403 = T₈₂).

The spelling of 243379 in words is "two hundred forty-three thousand, three hundred seventy-nine".