235994389 has 2 divisors, whose sum is σ = 235994390. Its totient is φ = 235994388.

The previous prime is 235994387. The next prime is 235994411. The reversal of 235994389 is 983499532.

235994389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211935364 + 24059025 = 14558^2 + 4905^2 .

It is a cyclic number.

It is not a de Polignac number, because 235994389 - 2¹ = 235994387 is a prime.

Together with 235994387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235994387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117997194 + 117997195.

It is an arithmetic number, because the mean of its divisors is an integer number (117997195).

Almost surely, 2^235994389 is an apocalyptic number.

It is an amenable number.

235994389 is a deficient number, since it is larger than the sum of its proper divisors (1).

235994389 is an equidigital number, since it uses as much as digits as its factorization.

235994389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 52.

The square root of 235994389 is about 15362.1088721568. The cubic root of 235994389 is about 617.9697630113.

The spelling of 235994389 in words is "two hundred thirty-five million, nine hundred ninety-four thousand, three hundred eighty-nine".