229663907 has 4 divisors (see below), whose sum is σ = 250542456. Its totient is φ = 208785360.

The previous prime is 229663891. The next prime is 229663969. The reversal of 229663907 is 709366922.

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

It is a cyclic number.

It is not a de Polignac number, because 229663907 - 2⁴ = 229663891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229663307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10439258 + ... + 10439279.

It is an arithmetic number, because the mean of its divisors is an integer number (62635614).

Almost surely, 2^229663907 is an apocalyptic number.

229663907 is a deficient number, since it is larger than the sum of its proper divisors (20878549).

229663907 is a wasteful number, since it uses less digits than its factorization.

229663907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20878548.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 229663907 is about 15154.6661791014. Note that the first 3 decimals coincide. The cubic root of 229663907 is about 612.3939848167.

The spelling of 229663907 in words is "two hundred twenty-nine million, six hundred sixty-three thousand, nine hundred seven".