238867243 has 2 divisors, whose sum is σ = 238867244. Its totient is φ = 238867242.

The previous prime is 238867199. The next prime is 238867273. The reversal of 238867243 is 342768832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238867243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238867243.

It is not a weakly prime, because it can be changed into another prime (238867273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119433621 + 119433622.

It is an arithmetic number, because the mean of its divisors is an integer number (119433622).

Almost surely, 2^238867243 is an apocalyptic number.

238867243 is a deficient number, since it is larger than the sum of its proper divisors (1).

238867243 is an equidigital number, since it uses as much as digits as its factorization.

238867243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 238867243 is about 15455.3305690949. The cubic root of 238867243 is about 620.4672535656.

The spelling of 238867243 in words is "two hundred thirty-eight million, eight hundred sixty-seven thousand, two hundred forty-three".