243968707 has 4 divisors (see below), whose sum is σ = 247968256. Its totient is φ = 239969160.

The previous prime is 243968689. The next prime is 243968719. The reversal of 243968707 is 707869342.

243968707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243968707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243968407) 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, 1999683 + ... + 1999804.

It is an arithmetic number, because the mean of its divisors is an integer number (61992064).

Almost surely, 2^243968707 is an apocalyptic number.

243968707 is a deficient number, since it is larger than the sum of its proper divisors (3999549).

243968707 is an equidigital number, since it uses as much as digits as its factorization.

243968707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999548.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 243968707 is about 15619.4976551744. The cubic root of 243968707 is about 624.8532621915.

The spelling of 243968707 in words is "two hundred forty-three million, nine hundred sixty-eight thousand, seven hundred seven".