238378447 has 2 divisors, whose sum is σ = 238378448. Its totient is φ = 238378446.

The previous prime is 238378421. The next prime is 238378451. The reversal of 238378447 is 744873832.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238378447 - 2¹¹ = 238376399 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 238378397 and 238378406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238378487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119189223 + 119189224.

It is an arithmetic number, because the mean of its divisors is an integer number (119189224).

Almost surely, 2^238378447 is an apocalyptic number.

238378447 is a deficient number, since it is larger than the sum of its proper divisors (1).

238378447 is an equidigital number, since it uses as much as digits as its factorization.

238378447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 46.

The square root of 238378447 is about 15439.5092862435. The cubic root of 238378447 is about 620.0437421445.

The spelling of 238378447 in words is "two hundred thirty-eight million, three hundred seventy-eight thousand, four hundred forty-seven".