230643706 has 4 divisors (see below), whose sum is σ = 345965562. Its totient is φ = 115321852.

The previous prime is 230643703. The next prime is 230643727. The reversal of 230643706 is 607346032.

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

It can be written as a sum of positive squares in only one way, i.e., 188925025 + 41718681 = 13745^2 + 6459^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (230643703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57660925 + ... + 57660928.

Almost surely, 2^230643706 is an apocalyptic number.

230643706 is a deficient number, since it is larger than the sum of its proper divisors (115321856).

230643706 is a wasteful number, since it uses less digits than its factorization.

230643706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115321855.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 230643706 is about 15186.9584183272. The cubic root of 230643706 is about 613.2636204503.

Adding to 230643706 its reverse (607346032), we get a palindrome (837989738).

The spelling of 230643706 in words is "two hundred thirty million, six hundred forty-three thousand, seven hundred six".