243632923 has 2 divisors, whose sum is σ = 243632924. Its totient is φ = 243632922.

The previous prime is 243632903. The next prime is 243632929. The reversal of 243632923 is 329236342.

243632923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243632923 is a prime.

It is not a weakly prime, because it can be changed into another prime (243632929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121816461 + 121816462.

It is an arithmetic number, because the mean of its divisors is an integer number (121816462).

Almost surely, 2^243632923 is an apocalyptic number.

243632923 is a deficient number, since it is larger than the sum of its proper divisors (1).

243632923 is an equidigital number, since it uses as much as digits as its factorization.

243632923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 34.

The square root of 243632923 is about 15608.7450808833. The cubic root of 243632923 is about 624.5664602989.

The spelling of 243632923 in words is "two hundred forty-three million, six hundred thirty-two thousand, nine hundred twenty-three".