238934893 has 2 divisors, whose sum is σ = 238934894. Its totient is φ = 238934892.

The previous prime is 238934873. The next prime is 238934903. The reversal of 238934893 is 398439832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218980804 + 19954089 = 14798^2 + 4467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238934893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238934803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119467446 + 119467447.

It is an arithmetic number, because the mean of its divisors is an integer number (119467447).

Almost surely, 2^238934893 is an apocalyptic number.

It is an amenable number.

238934893 is a deficient number, since it is larger than the sum of its proper divisors (1).

238934893 is an equidigital number, since it uses as much as digits as its factorization.

238934893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The square root of 238934893 is about 15457.5189794482. The cubic root of 238934893 is about 620.5258225671.

The spelling of 238934893 in words is "two hundred thirty-eight million, nine hundred thirty-four thousand, eight hundred ninety-three".