243712973 has 8 divisors (see below), whose sum is σ = 279427200. Its totient is φ = 208223280.

The previous prime is 243712961. The next prime is 243712993. The reversal of 243712973 is 379217342.

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

It is a cyclic number.

It is not a de Polignac number, because 243712973 - 2⁴ = 243712957 is a prime.

It is a super-3 number, since 3×243712973³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243712993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53798 + ... + 58151.

It is an arithmetic number, because the mean of its divisors is an integer number (34928400).

Almost surely, 2^243712973 is an apocalyptic number.

It is an amenable number.

243712973 is a deficient number, since it is larger than the sum of its proper divisors (35714227).

243712973 is a wasteful number, since it uses less digits than its factorization.

243712973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112267.

The product of its digits is 63504, while the sum is 38.

The square root of 243712973 is about 15611.3091379295. The cubic root of 243712973 is about 624.6348570078.

The spelling of 243712973 in words is "two hundred forty-three million, seven hundred twelve thousand, nine hundred seventy-three".