238683839 has 2 divisors, whose sum is σ = 238683840. Its totient is φ = 238683838.

The previous prime is 238683829. The next prime is 238683853. The reversal of 238683839 is 938386832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238683839 - 2¹² = 238679743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238683829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119341919 + 119341920.

It is an arithmetic number, because the mean of its divisors is an integer number (119341920).

Almost surely, 2^238683839 is an apocalyptic number.

238683839 is a deficient number, since it is larger than the sum of its proper divisors (1).

238683839 is an equidigital number, since it uses as much as digits as its factorization.

238683839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 50.

The square root of 238683839 is about 15449.3960723389. The cubic root of 238683839 is about 620.3084131546.

The spelling of 238683839 in words is "two hundred thirty-eight million, six hundred eighty-three thousand, eight hundred thirty-nine".