238789399 has 2 divisors, whose sum is σ = 238789400. Its totient is φ = 238789398.

The previous prime is 238789349. The next prime is 238789477. The reversal of 238789399 is 993987832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238789399 - 2⁹ = 238788887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238789349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119394699 + 119394700.

It is an arithmetic number, because the mean of its divisors is an integer number (119394700).

Almost surely, 2^238789399 is an apocalyptic number.

238789399 is a deficient number, since it is larger than the sum of its proper divisors (1).

238789399 is an equidigital number, since it uses as much as digits as its factorization.

238789399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 58.

The square root of 238789399 is about 15452.8120094693. The cubic root of 238789399 is about 620.3998452708.

The spelling of 238789399 in words is "two hundred thirty-eight million, seven hundred eighty-nine thousand, three hundred ninety-nine".