238956247 has 2 divisors, whose sum is σ = 238956248. Its totient is φ = 238956246.

The previous prime is 238956239. The next prime is 238956257. The reversal of 238956247 is 742659832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238956247 - 2³ = 238956239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238956197 and 238956206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238956227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119478123 + 119478124.

It is an arithmetic number, because the mean of its divisors is an integer number (119478124).

Almost surely, 2^238956247 is an apocalyptic number.

238956247 is a deficient number, since it is larger than the sum of its proper divisors (1).

238956247 is an equidigital number, since it uses as much as digits as its factorization.

238956247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The square root of 238956247 is about 15458.2096958218. The cubic root of 238956247 is about 620.5443078171.

The spelling of 238956247 in words is "two hundred thirty-eight million, nine hundred fifty-six thousand, two hundred forty-seven".