234107989 has 2 divisors, whose sum is σ = 234107990. Its totient is φ = 234107988.

The previous prime is 234107947. The next prime is 234107999. The reversal of 234107989 is 989701432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233172900 + 935089 = 15270^2 + 967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234107989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234107999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117053994 + 117053995.

It is an arithmetic number, because the mean of its divisors is an integer number (117053995).

Almost surely, 2^234107989 is an apocalyptic number.

It is an amenable number.

234107989 is a deficient number, since it is larger than the sum of its proper divisors (1).

234107989 is an equidigital number, since it uses as much as digits as its factorization.

234107989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 234107989 is about 15300.5878645234. The cubic root of 234107989 is about 616.3187942351.

The spelling of 234107989 in words is "two hundred thirty-four million, one hundred seven thousand, nine hundred eighty-nine".