238372247 has 2 divisors, whose sum is σ = 238372248. Its totient is φ = 238372246.

The previous prime is 238372231. The next prime is 238372261. The reversal of 238372247 is 742273832.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238372247 - 2⁴ = 238372231 is a prime.

It is a super-3 number, since 3×238372247³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238372247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238372847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119186123 + 119186124.

It is an arithmetic number, because the mean of its divisors is an integer number (119186124).

Almost surely, 2^238372247 is an apocalyptic number.

238372247 is a deficient number, since it is larger than the sum of its proper divisors (1).

238372247 is an equidigital number, since it uses as much as digits as its factorization.

238372247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 38.

The square root of 238372247 is about 15439.3085013546. The cubic root of 238372247 is about 620.0383665124.

The spelling of 238372247 in words is "two hundred thirty-eight million, three hundred seventy-two thousand, two hundred forty-seven".