238213387 has 2 divisors, whose sum is σ = 238213388. Its totient is φ = 238213386.

The previous prime is 238213319. The next prime is 238213397. The reversal of 238213387 is 783312832.

238213387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238213387 - 2¹⁵ = 238180619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238213397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119106693 + 119106694.

It is an arithmetic number, because the mean of its divisors is an integer number (119106694).

Almost surely, 2^238213387 is an apocalyptic number.

238213387 is a deficient number, since it is larger than the sum of its proper divisors (1).

238213387 is an equidigital number, since it uses as much as digits as its factorization.

238213387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 238213387 is about 15434.1629834598. The cubic root of 238213387 is about 619.9005971405.

The spelling of 238213387 in words is "two hundred thirty-eight million, two hundred thirteen thousand, three hundred eighty-seven".