234653689 has 2 divisors, whose sum is σ = 234653690. Its totient is φ = 234653688.

The previous prime is 234653687. The next prime is 234653707. The reversal of 234653689 is 986356432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161722089 + 72931600 = 12717^2 + 8540^2 .

It is a cyclic number.

It is not a de Polignac number, because 234653689 - 2¹ = 234653687 is a prime.

It is a super-2 number, since 2×234653689² = 110124707522617442, which contains 22 as substring.

Together with 234653687, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (234653687) 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, 117326844 + 117326845.

It is an arithmetic number, because the mean of its divisors is an integer number (117326845).

Almost surely, 2^234653689 is an apocalyptic number.

It is an amenable number.

234653689 is a deficient number, since it is larger than the sum of its proper divisors (1).

234653689 is an equidigital number, since it uses as much as digits as its factorization.

234653689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The square root of 234653689 is about 15318.4101329087. The cubic root of 234653689 is about 616.7972973160.

The spelling of 234653689 in words is "two hundred thirty-four million, six hundred fifty-three thousand, six hundred eighty-nine".