234989 has 2 divisors, whose sum is σ = 234990. Its totient is φ = 234988.

The previous prime is 234979. The next prime is 235003. The reversal of 234989 is 989432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218089 + 16900 = 467^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 234989 - 2⁸ = 234733 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2¹¹ + 3¹¹ + 9² + 4⁷ + 8⁵ + 9⁴ .

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117494 + 117495.

It is an arithmetic number, because the mean of its divisors is an integer number (117495).

2²³⁴⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

234989 is a deficient number, since it is larger than the sum of its proper divisors (1).

234989 is an equidigital number, since it uses as much as digits as its factorization.

234989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 234989 is about 484.7566399752. The cubic root of 234989 is about 61.7090950608.

The spelling of 234989 in words is "two hundred thirty-four thousand, nine hundred eighty-nine".