243598 has 8 divisors (see below), whose sum is σ = 377280. Its totient is φ = 117840.

The previous prime is 243589. The next prime is 243613. The reversal of 243598 is 895342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903 + ... + 2026.

It is an arithmetic number, because the mean of its divisors is an integer number (47160).

2²⁴³⁵⁹⁸ is an apocalyptic number.

243598 is a deficient number, since it is larger than the sum of its proper divisors (133682).

243598 is a wasteful number, since it uses less digits than its factorization.

243598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962.

The product of its digits is 8640, while the sum is 31.

The square root of 243598 is about 493.5564810637. The cubic root of 243598 is about 62.4536616526.

It can be divided in two parts, 243 and 598, that added together give a square (841 = 29²).

The spelling of 243598 in words is "two hundred forty-three thousand, five hundred ninety-eight".