234723643 has 8 divisors (see below), whose sum is σ = 292642560. Its totient is φ = 182901480.

The previous prime is 234723617. The next prime is 234723649. The reversal of 234723643 is 346327432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234723643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234723599 and 234723608.

It is not an unprimeable number, because it can be changed into a prime (234723649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524103 + ... + 1524256.

It is an arithmetic number, because the mean of its divisors is an integer number (36580320).

Almost surely, 2^234723643 is an apocalyptic number.

234723643 is a deficient number, since it is larger than the sum of its proper divisors (57918917).

234723643 is a wasteful number, since it uses less digits than its factorization.

234723643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048377.

The product of its digits is 72576, while the sum is 34.

The square root of 234723643 is about 15320.6932937123. The cubic root of 234723643 is about 616.8585835905.

The spelling of 234723643 in words is "two hundred thirty-four million, seven hundred twenty-three thousand, six hundred forty-three".