238234847 has 2 divisors, whose sum is σ = 238234848. Its totient is φ = 238234846.

The previous prime is 238234831. The next prime is 238234853. The reversal of 238234847 is 748432832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238234847 - 2⁴ = 238234831 is a prime.

It is a super-2 number, since 2×238234847² = 113511684650226818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238230847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119117423 + 119117424.

It is an arithmetic number, because the mean of its divisors is an integer number (119117424).

Almost surely, 2^238234847 is an apocalyptic number.

238234847 is a deficient number, since it is larger than the sum of its proper divisors (1).

238234847 is an equidigital number, since it uses as much as digits as its factorization.

238234847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 41.

The square root of 238234847 is about 15434.8581788107. The cubic root of 238234847 is about 619.9192116378.

The spelling of 238234847 in words is "two hundred thirty-eight million, two hundred thirty-four thousand, eight hundred forty-seven".