234238247 has 4 divisors (see below), whose sum is σ = 234385080. Its totient is φ = 234091416.

The previous prime is 234238181. The next prime is 234238259. The reversal of 234238247 is 742832432.

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

It is a cyclic number.

It is not a de Polignac number, because 234238247 - 2¹⁸ = 233976103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234238267) 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, 70997 + ... + 74222.

It is an arithmetic number, because the mean of its divisors is an integer number (58596270).

Almost surely, 2^234238247 is an apocalyptic number.

234238247 is a deficient number, since it is larger than the sum of its proper divisors (146833).

234238247 is a wasteful number, since it uses less digits than its factorization.

234238247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146832.

The product of its digits is 64512, while the sum is 35.

The square root of 234238247 is about 15304.8439064239. The cubic root of 234238247 is about 616.4330799102.

The spelling of 234238247 in words is "two hundred thirty-four million, two hundred thirty-eight thousand, two hundred forty-seven".