238470847 has 2 divisors, whose sum is σ = 238470848. Its totient is φ = 238470846.

The previous prime is 238470839. The next prime is 238470851. The reversal of 238470847 is 748074832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238470847 - 2³ = 238470839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238470247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119235423 + 119235424.

It is an arithmetic number, because the mean of its divisors is an integer number (119235424).

Almost surely, 2^238470847 is an apocalyptic number.

238470847 is a deficient number, since it is larger than the sum of its proper divisors (1).

238470847 is an equidigital number, since it uses as much as digits as its factorization.

238470847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 238470847 is about 15442.5013194107. The cubic root of 238470847 is about 620.1238453608.

The spelling of 238470847 in words is "two hundred thirty-eight million, four hundred seventy thousand, eight hundred forty-seven".