234597989 has 2 divisors, whose sum is σ = 234597990. Its totient is φ = 234597988.

The previous prime is 234597973. The next prime is 234598033. The reversal of 234597989 is 989795432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135256900 + 99341089 = 11630^2 + 9967^2 .

It is a cyclic number.

It is not a de Polignac number, because 234597989 - 2⁴ = 234597973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234597949) 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, 117298994 + 117298995.

It is an arithmetic number, because the mean of its divisors is an integer number (117298995).

Almost surely, 2^234597989 is an apocalyptic number.

It is an amenable number.

234597989 is a deficient number, since it is larger than the sum of its proper divisors (1).

234597989 is an equidigital number, since it uses as much as digits as its factorization.

234597989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 56.

The square root of 234597989 is about 15316.5919512142. The cubic root of 234597989 is about 616.7484901734.

The spelling of 234597989 in words is "two hundred thirty-four million, five hundred ninety-seven thousand, nine hundred eighty-nine".