243960663 has 8 divisors (see below), whose sum is σ = 326932848. Its totient is φ = 161814464.

The previous prime is 243960649. The next prime is 243960677. The reversal of 243960663 is 366069342.

It is an interprime number because it is at equal distance from previous prime (243960649) and next prime (243960677).

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 243960663 - 2⁵ = 243960631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243960623) 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, 205806 + ... + 206987.

It is an arithmetic number, because the mean of its divisors is an integer number (40866606).

Almost surely, 2^243960663 is an apocalyptic number.

243960663 is a deficient number, since it is larger than the sum of its proper divisors (82972185).

243960663 is a wasteful number, since it uses less digits than its factorization.

243960663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412993.

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 243960663 is about 15619.2401543737. The cubic root of 243960663 is about 624.8463946784.

The spelling of 243960663 in words is "two hundred forty-three million, nine hundred sixty thousand, six hundred sixty-three".