234664789 has 4 divisors (see below), whose sum is σ = 234739180. Its totient is φ = 234590400.

The previous prime is 234664769. The next prime is 234664813. The reversal of 234664789 is 987466432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14884164 + 219780625 = 3858^2 + 14825^2 .

It is a cyclic number.

It is not a de Polignac number, because 234664789 - 2²¹ = 232567637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234664769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32244 + ... + 38845.

It is an arithmetic number, because the mean of its divisors is an integer number (58684795).

Almost surely, 2^234664789 is an apocalyptic number.

It is an amenable number.

234664789 is a deficient number, since it is larger than the sum of its proper divisors (74391).

234664789 is an equidigital number, since it uses as much as digits as its factorization.

234664789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74390.

The product of its digits is 1741824, while the sum is 49.

The square root of 234664789 is about 15318.7724377641. The cubic root of 234664789 is about 616.8070227715.

The spelling of 234664789 in words is "two hundred thirty-four million, six hundred sixty-four thousand, seven hundred eighty-nine".